Exhibit EX 99.7


                        CROWN CORK & SEAL COMPANY, INC.

                             Officers' Certificate
                             ---------------------

     The undersigned, Craig R.L. Calle, the duly qualified and elected Senior
Vice President-Finance and Treasurer of Crown Cork & Seal Company, Inc., a
Pennsylvania corporation (the "Company"), and William T. Gallagher, the duly
qualified and elected Assistant Secretary and Assistant General Counsel of the
Company, pursuant to the authority granted by the Board of Directors of the
Company on December 12, 1996, in accordance with Section 3.01 of the Indenture,
dated as of December 17, 1996, among the Company, as issuer, Crown Cork & Seal
Finance PLC, a public limited company organized under the laws of England and
Wales, Crown Cork & Seal Finance S.A., a societe anonyme organized under the
laws of the Republic of France, and The Bank of New York, as trustee (the
"Indenture"), hereby certify as follows:

     1.   The title of the Securities to be issued is the 7-1/2% Debentures Due
          2096 (the "Debentures").

     2.   The aggregate principal amount of Debentures which may be
          authenticated and delivered under the Indenture is U.S. $150,000,000
          (except for Securities authenticated and delivered upon registration
          of transfer of, or in exchange for, or in lieu of, the Debentures
          pursuant to Sections 3.04, 3.05, 3.06, 9.06, or 11.07 of the
          Indenture).

     3.   The principal of the Debentures shall be payable on December 15, 2096.

     4.   The Debentures shall bear interest from December 17, 1996, their date
          of issue, at the annual rate of 7-1/2%. Interest shall be payable 
          semi-annually on December 15 and June 15 of each year, commencing 
          June 15, 1997, to holders of record on the preceding December 1 or 
          June 1, as the case may be.

     5.   The place for payment of principal of and interest on the Debentures
          and surrender for exchange of the Debentures shall be as specified in
          the Debentures.

     6.   The Debentures shall be subject to redemption at the option of the
          Company prior to maturity pursuant to Section 11.09 of the Indenture,
          at a rate equal to the Treasury Rate plus 20 basis points.

     7.   The Company shall not be obligated to redeem or purchase the
          Debentures pursuant to any sinking fund or at the option of the holder
          thereof.

     8.   The Debentures shall be subject to the Events of

 
          Default set forth in Section 5.01 of the Indenture, to the covenants
          of the Company set forth in Article X of the Indenture, and to the
          provisions of Sections 10.12 and 11.10 of the Indenture.

     9.   The Notes shall be issued in permanent form to the Depository Trust
          Company ("DTC") or its nominee, as Depositary, in the form of one
          Global Security (as defined in the Indenture and pursuant to Section
          3.11 thereof) in the amount of $150,000,000 and without interest
          coupons. Beneficial interests in the Notes will trade in the DTC's
          Same-Day Funds Settlement System. Upon the written instructions of the
          Company, the Depositary for such Global Securities will surrender the
          Global Securities in exchange in whole or in part for Securities in
          definitive form.

     10.  The provisions of Section 4.01 relating to the satisfaction and
          discharge of Securities of any series shall apply to the Debentures.

     Capitalized terms not otherwise defined herein have the meanings set forth
in the Indenture.

 
          IN WITNESS WHEREOF, I have affixed my signature hereto this 17th day
of December, 1996.

                                        /s/ Craig R. L. Calle
                                        ----------------------------
                                        Craig R.L. Calle
                                        Senior Vice President - Finance
                                        and Treasurer
                             
                                        /s/ William T. Gallagher
                                        ----------------------------
                                        William T. Gallagher
                                        Assistant Secretary and 
                                        Assistant General Counsel