SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549




                                   FORM 11-K

[ X ]    ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE  SECURITIES EXCHANGE ACT
         OF 1934


         For the fiscal year ended December 31, 2001

         Commission File Number 1-2227

         E.       Full title of the plan:

                  Crown Cork & Seal Company, Inc.
                  Retirement Thrift Plan

         F.       Name of issuer of the securities held pursuant to the plan and
                  the address of its principal executive office:


                        CROWN CORK & SEAL COMPANY, INC.
                                 ONE CROWN WAY
                          PHILADELPHIA, PA 19154-4599





                                      INDEX


                                                                         Pages


Signatures...........................................................      3

Report of Independent Accountants....................................      6

Audited Plan Financial Statements and Schedules in
accordance with the Financial Reporting Requirements of ERISA........   7 to 14

Exhibit 23 - Consent of Independent Accountants......................     15





                                   SIGNATURES



Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Committee  has duly caused this annual  report to be signed on its behalf by the
undersigned hereunto duly authorized.





                                       Crown Cork & Seal Company, Inc.
                                       Retirement Thrift Plan



                                       By: /s/ James T. Malec
                                           ------------------
                                           James T. Malec
                                           Member, Benefit Plan Committee

Date: June 28, 2002





CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN

Financial Statements as of and for the
years ended December 31, 2001 and 2000

Additional information required for Form 5500
as of and for the year ended December 31, 2001




CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN
Table of Contents
- --------------------------------------------------------------------------------





                                                                    Page Number


Report of Independent Accountants                                      1


Basic Financial Statements

      Statements of Net Assets Available for Benefits                  2
           as of December 31, 2001 and 2000

      Statements of Changes in Net Assets Available for Benefits       3
          for the years ended December 31, 2001 and 2000

      Notes to Financial Statements                                  4 - 7


Additional Information *

      Schedule I - Schedule of Assets (Held at End of Year)            8



* Other supplemental schedules required by Section 2520.103-10 of the Department
  of  Labor  Rules  and   Regulations  for  Reporting  and  Disclosure under the
  Employee Retirement Income Security Act of 1974 have been omitted because they
  are not applicable.







                       Report of Independent Accountants


To the Benefit Plans Committee and Participants of the
Crown Cork & Seal Company, Inc. Retirement Thrift Plan

In our opinion, the accompanying statements of net assets available for benefits
and the  related  statements  of changes in net assets  available  for  benefits
present fairly, in all material respects,  the net assets available for benefits
of the Crown Cork & Seal Company,  Inc.  Retirement  Thrift Plan (the "Plan") at
December 31, 2001 and 2000, and the changes in net assets available for benefits
for the years then ended,  in conformity with  accounting  principles  generally
accepted in the United States of America.  These  financial  statements  are the
responsibility  of the Plan's  management;  our  responsibility is to express an
opinion on these  financial  statements  based on our audits.  We conducted  our
audits of these  statements in  accordance  with  auditing  standards  generally
accepted in the United States of America, which require that we plan and perform
the audit to obtain reasonable  assurance about whether the financial statements
are free of material misstatement. An audit includes examining, on a test basis,
evidence  supporting the amounts and  disclosures  in the financial  statements,
assessing the  accounting  principles  used and  significant  estimates  made by
management,  and evaluating the overall  financial  statement  presentation.  We
believe our audits provide a reasonable basis for our opinion.

Our audits  were  conducted  for the  purpose of forming an opinion on the basic
financial statements taken as a whole. The supplemental schedule of assets (held
at end of year) is presented for the purpose of additional analysis and is not a
required part of the basic financial statements but is supplementary information
required by the  Department of Labor's Rules and  Regulations  for Reporting and
Disclosure  under the  Employee  Retirement  Income  Security  Act of 1974.  The
supplemental  schedule  is the  responsibility  of the  Plan's  management.  The
supplemental  schedule has been subjected to the auditing  procedures applied in
the audits of the basic  financial  statements  and, in our  opinion,  is fairly
stated in all material  respects in relation to the basic  financial  statements
taken as a whole.






/s/ PricewaterhouseCoopers LLP

Philadelphia, PA
June 21, 2002



                                       1









CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN
Statements of Net Assets Available for Benefits
- ------------------------------------------------------------------------------------------------------------------------------------

                                                                                         As of December 31,
                                                                                   2001                     2000
                                                                              ---------------------------------------
                                                                                                 

Investments, at fair value
Registered investment companies:
    Vanguard 500 Index Fund                                                   $ 31,972,151 *           $ 39,059,463 *
    Vanguard Balanced Index Fund                                                 7,804,786 *              8,288,511 *
    Vanguard Explorer Fund                                                       8,015,582 *              8,184,128 *
    Vanguard International Growth Fund                                           2,762,605                3,465,073
    Vanguard Total Bond Market Index Fund                                        6,809,696 *              5,753,856 *
                                                                              ------------             ------------
                                                                                57,364,820               64,751,031
Vanguard Retirement Savings Trust                                               25,564,132 *             24,356,058 *
Crown Cork & Seal Company, Inc. Stock Fund                                       1,338,597                1,582,795
Participant Loans                                                                3,031,126                2,986,253
                                                                              ------------             ------------
        Total investments                                                       87,298,675               93,676,137
                                                                              ------------             ------------

Receivables

Employer's contributions                                                           129,984                  156,960
Participants' contributions                                                        480,513                  580,521
                                                                              ------------             ------------
        Total receivables                                                          610,497                  737,481
                                                                              ------------             ------------
Net assets available for benefits                                             $ 87,909,172             $ 94,413,618
                                                                              ============             ============


<FN>

*  Represents 5% or more of net assets available for benefits.

The accompanying notes are an integral part of these financial statements.
</FN>







                                       2










CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN
Statements of Changes in Net Assets Available for Benefits
- ------------------------------------------------------------------------------------------------------------------------------------

                                                                                     Year Ended December 31,
                                                                                  2001                    2000
                                                                              ------------            ------------
                                                                                                
Additions
Investment income:
     Interest and dividend income, investments                                $  2,569,038            $  4,506,031
     Interest income, participant loans                                            297,119                 168,115
     Net depreciation in fair value of investments                              (7,553,732)             (7,237,807)
                                                                              ------------            ------------
                                                                                (4,687,575)             (2,563,661)
                                                                              ------------            ------------
Contributions:
     Employer                                                                    2,260,999               2,499,424
     Participant                                                                 6,996,621               8,173,976
                                                                              ------------            ------------
                                                                                 9,257,620              10,673,400
                                                                              ------------            ------------
        Total additions                                                          4,570,045               8,109,739
                                                                              ------------            ------------

Deductions
Payment of benefits                                                             11,055,735               8,728,618
Asset transfers out                                                                      -                  20,253
Administrative expenses                                                             18,756                  25,017
                                                                              ------------            ------------
        Total deductions                                                        11,074,491               8,773,888
                                                                              ------------            ------------


Net decrease                                                                    (6,504,446)               (664,149)

Net assets available for plan benefits:
     Beginning of year                                                          94,413,618              95,077,767
                                                                              ------------            ------------
     End of year                                                              $ 87,909,172            $ 94,413,618
                                                                              ============            ============

<FN>

The accompanying notes are an integral part of these financial statements.
</FN>





                                       3







CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN

Notes to Financial Statements
- --------------------------------------------------------------------------------


NOTE 1 - DESCRIPTION OF PLAN

The  following  description  of the Crown Cork & Seal Company,  Inc.  Retirement
Thrift Plan (the "Plan") provides only general information.  Participants should
refer  to the  Plan  document  for a more  complete  description  of the  Plan's
provisions.

General
The plan is a voluntary defined  contribution plan, which is designed to provide
a convenient  method by which  eligible  employees  may save  regularly  through
salary deferrals.  Participation in the Plan is determined by an agreement among
recognized  collective bargaining units and Crown Cork & Seal Company, Inc. (the
"Company")  or as otherwise  agreed upon  between the Company and  non-organized
hourly  employees.  The Plan is  administered  by the Crown Cork & Seal Company,
Inc.  Benefit Plans  Committee  (the  "Committee").  The Committee has appointed
Vanguard Fiduciary Trust Company ("VFTC") as the trustee of the Plan.

The Plan provides certain employees the opportunity to purchase Company stock at
a purchase price equal to the closing price on the day of deposit.

During 1999,  the Company sold a segment of the  Composite  Can  division.  As a
result  of this  transaction,  participant  accounts  of  former  Composite  Can
employees were transferred out of the Plan in 2000 in the amount of $20,253.

Contributions
Participants  may elect to make  basic  and  supplemental  contributions  (where
permitted)  each  pay  period.  Contribution  amounts  are  subject  to  certain
limitations, $10,500 in 2001 and 2000, as prescribed by law. Participants direct
the investment of their contributions into various investment options offered by
the Plan.  Basic  contributions  may be matched by the Company at various rates.
Supplemental  contributions (where permitted) are not matched by the Company. In
addition,  certain  participants receive fixed contributions from the Company at
varying  rates.  Participants  should  refer  to the  Plan  document  for a more
complete description of the Plan's provisions.

Participant Accounts
Each participant's  account is credited with the participant's  contribution and
allocation of (a) the Company's  contribution and (b) Plan earnings, and charged
with  an  allocation  of  administrative  expenses.  Allocations  are  based  on
participant  earnings or account  balances,  as defined.  The benefit to which a
participant   is  entitled  is  the  benefit  that  can  be  provided  from  the
participant's vested account.

Vesting
Participants are immediately vested in their  contributions plus actual earnings
thereon.  Vesting  in the  Company's  matching  contribution  portion  of  their
accounts plus  earnings  thereon is based on various  rates  established  in the
collective bargaining agreements or in the plan documents. A participant becomes
100 percent vested after completing 4 or 5 years of service, as defined.



                                       4






CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN

Notes to Financial Statements
- --------------------------------------------------------------------------------


Participant Loans
The Plan  does  not  generally  allow  participants  to take  loans  from  their
accounts.  However,  in some  circumstances  participants  who are  employees of
certain divisions of the Company and participants who are former participants of
certain  plans,  which have merged into the Plan,  are allowed  loans from their
accounts.  Generally, these participants may borrow from their vested accounts a
maximum of the lesser of $50,000 or 50% of their account balance.  The loans are
secured  by the  balance  in the  participant's  account  and bear  interest  at
prevailing  interest  rates.  Principal  and interest  are paid ratably  through
monthly payroll deductions.

Payment of Benefits
On  termination of service due to  retirement,  attainment of age 65,  permanent
plant shutdown,  permanent disability, or death, the participant,  or his or her
beneficiary,  automatically  becomes fully vested in the Company  contributions.
Distributions  to  participants  are  generally  paid  in a  lump  sum.  Certain
participants have the option of being paid in monthly installments.

Forfeited Accounts
Total  unallocated  forfeitures,  which will be used to reduce  future  employer
contributions,  were  $175,952  and  $110,648  at  December  31,  2001 and 2000,
respectively.  In 2001 and 2000,  no  forfeitures  were used to offset  employer
contributions.

Plan Termination
The  Company  reserves  the right to  retroactively  amend or modify  any of the
provisions  of the Plan in any respect in order to qualify or maintain  the Plan
as a plan meeting the  requirements of the Employee  Retirement  Income Security
Act of 1974 ("ERISA") or any other applicable  legislation.  The Plan is subject
to the  provisions of ERISA.  Although it has not expressed any intent to do so,
the Company has the right under the Plan to discontinue its contributions at any
time and to terminate the Plan subject to the provisions of ERISA.  In the event
of Plan  termination,  participants  will  become  100  percent  vested in their
accounts.

NOTE 2 - SUMMARY OF ACCOUNTING POLICIES

The following  accounting  policies,  which conform with  accounting  principles
generally accepted in the United States of America,  have been used consistently
in the preparation of the Plan's financial statements:

Basis of Accounting
The financial  statements of the Plan are prepared  under the accrual  method of
accounting.

Use of Estimates
The  preparation  of  financial   statements,   in  conformity  with  accounting
principles  generally  accepted  in  the  United  States  of  America,  requires
management to make estimates and assumptions that affect the reported amounts of
assets and  liabilities  and disclosure of contingent  assets and liabilities at
the date of the financial  statements,  as well as reported amounts of additions
and  deductions  during the reporting  period.  Actual results could differ from
those estimates.


                                       5






CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN

Notes to Financial Statements
- --------------------------------------------------------------------------------


Investment Valuation and Income Recognition
The Plan's investments are stated at fair value. Shares of registered investment
companies  are valued at quoted  market  prices,  which  represent the net asset
value of shares held by the Plan at year-end.  Units of the Vanguard  Retirement
Savings Trust (a  common/collective  trust) are valued at the net asset value of
units  held by the Plan at  year-end.  The  Company  stock fund is valued at its
year-end unit closing price  (comprised of year-end market price plus uninvested
cash position).  Participant  loans are valued at cost, which  approximates fair
value.

Purchases and sales of investments are recorded on a trade-date basis.  Interest
income is accrued when earned.  Dividend  income is recorded on the  ex-dividend
date. Capital gain distributions are included in dividend income.

NOTE 3 - INVESTMENTS

During  2001 and 2000,  the Plan's  investments  (including  gains and losses on
investments  bought and sold,  as well as held during the year)  depreciated  in
value as follows:


                                                    Year Ended December 31,
                                                    2001               2000
                                                    ----               ----

Registered investment companies                $  (6,076,888)     $  (6,284,264)
Common stock                                      (1,476,844)          (953,543)
                                               --------------------------------
Net depreciation in fair value of investments  $  (7,553,732)     $  (7,237,807)
                                               ================================

All investments are participant-directed.

NOTE 4 - RELATED PARTY TRANSACTIONS


The  Plan  invests  in  shares  of   registered   investment   companies  and  a
common/collective  trust  managed by an affiliate of VFTC.  VFTC acts as trustee
for only those  investments  as defined  by the Plan.  The Plan also  invests in
shares of the Company's stock through the Crown Cork & Seal Company,  Inc. Stock
Fund. Transactions in such investments qualify as party-in-interest transactions
and are exempt from the prohibited transaction rules.



                                       6






CROWN CORK & SEAL COMPANY, INC.
RETIREMENT THRIFT PLAN

Notes to Financial Statements
- --------------------------------------------------------------------------------


NOTE 5 - TAX STATUS

The Internal Revenue Service determined and informed the Company by letter dated
February  13,  1996 that the Plan was  qualified  under  Internal  Revenue  Code
("IRC")  Section  401(a).  The Plan has  subsequently  been amended and restated
since receiving the determination  letter. The Plan has filed an application for
a new determination  letter,  which is currently pending.  However,  the Company
believes the Plan is designed and is currently being operated in compliance with
the applicable requirements of the IRC.




                                       7






                     Additional Information
                     Required for Form 5500








CROWN CORK & SEAL COMPANY, INC.                                                                                        Schedule I
RETIREMENT THRIFT PLAN
Schedule of Assets (Held at End of Year)
As of December 31, 2001
- ------------------------------------------------------------------------------------------------------------------------------------

Crown Cork & Seal Company, Inc. Retirement Thrift Plan, EIN 23-1526444

Form 5500, Schedule H, Part IV, Line i:



     Identity of Issue                                                        Investment Type                       Current Value
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                                                               

*    Vanguard 500 Index Fund                                         Registered Investment Company                   $ 31,972,151
*    Vanguard Balanced Index Fund                                    Registered Investment Company                      7,804,786
*    Vanguard Explorer Fund                                          Registered Investment Company                      8,015,582
*    Vanguard International Growth Fund                              Registered Investment Company                      2,762,605
*    Vanguard Total Bond Market Index Fund                           Registered Investment Company                      6,809,696
*    Vanguard Retirement Savings Trust                               Common/Collective Trust                           25,564,132
*    Crown Cork & Seal Company, Inc.                                 Common Stock Fund                                  1,338,597
*    Crown Cork & Seal Company, Inc. Retirement Thrift Plan          Participant Loans (7.75% - 10.50%)                 3,031,126
                                                                                                                     ------------

Total Assets (Held at End of Year)                                                                                   $ 87,298,675
                                                                                                                     ============

<FN>
*   Party in Interest
</FN>




                                       8