CROWN CORK & SEAL COMPANY, INC.

                                 Debt Securities                 Exhibit 4

                                 TERMS AGREEMENT
                                 ---------------
                                                               August 25, 1999

Crown Cork & Seal Company, Inc.
One Crown Way
Philadelphia, Pennsylvania 19154-4599

Attention:  Mr. Craig R.L. Calle
            Senior Vice President
               - Finance and Treasurer

Ladies and Gentlemen:

                  We  understand  that  Crown  Cork  &  Seal  Company,  Inc.,  a
Pennsylvania   corporation   (the   "Company"),   proposes  to  issue  and  sell
$350,000,000  principal  amount of its 7 1/8% Notes due 2002 (the "Notes" or the
"Offered Debt  Securities").  We offer to purchase,  on and subject to the terms
and  conditions of the  Underwriting  Agreement (the  "Underwriting  Agreement")
filed as an exhibit to the  registration  statement  of the  Issuers on Form S-3
(No.   333-16869)  and  incorporated  by  reference  herein,  the  Offered  Debt
Securities on the following terms:

I.     CROWN CORK & SEAL COMPANY, INC.

       A.     7 1/8% Notes due 2002
              ---------------------

Principal Amount:           $350,000,000

Interest:                   7 1/8%  per  annum,  from   August 30, 1999, payable
                            semiannually on March 1 and September 1 of each
                            year, commencing March 1, 2000, to holders of record
                            on the  preceding  February 15 or  August 15, as the
                            case may be.

Maturity:                   September 1, 2002

Currency:                   US$

Denominations:              $1,000

Form:                       Represented by  Global Notes in registered form, and
                            beneficial interests  in  such  will  trade in DTC's
                            Same-Day Funds Settlement System.

Optional Redemption:        None.

Sinking Fund:               None.

Delayed Delivery Contracts: None.

Other:                      Sections  4.01 and  10.12 of the  Indenture shall be
                            applicable.

Purchase Price:             99.384% of principal amount, plus accrued interest,
                            if any, from August 30, 1999.

Expected Reoffering Price:  99.784%  of  principal amount, subject to  change by
                            the undersigned.
<PAGE>
                                                                             2


                  The Closing  will be held at 9:00 a.m.,  New York City time on
August 30,  1999,  at the offices of  Cravath,  Swaine & Moore,  with  immediate
payment to be made by wire transfer of same day funds.

The Address for Service of Notices is:

                  c/o Salomon Smith Barney Inc.
                  Seven World Trade Center
                  New York, NY 10048

                  and

                  Crown Cork & Seal Company, Inc.
                  One Crown Way
                  Philadelphia, PA 19154-4599

                  The   respective   principal   amounts  of  the  Offered  Debt
Securities to be purchased by each of the  Underwriters  are set forth  opposite
their names in Schedule A hereto.

                  It is understood  that we may,  with your consent,  amend this
offer to add additional  Underwriters and reduce the aggregate  principal amount
to be purchased by the Underwriters listed in Schedule A hereto by the aggregate
principal amount to be purchased by such additional Underwriters.

                  All the provisions of the Underwriting Agreement,  attached as
Exhibit A hereto, are incorporated  herein by reference.  We are in receipt of a
draft of the letter required to be delivered by PricewaterhouseCoopers  pursuant
to  Section  5(a) of the  Underwriting  Agreement  and  understand  that we will
receive executed copies of such letters no later than August 30, 1999.

                  The  Offered  Debt  Securities  will  be  made  available  for
checking at the office of The Bank of New York,  New York,  New York at least 24
hours prior to the Closing Date.


<PAGE>
                                                                             3

                  Please  signify  your  acceptance  of our offer by signing the
enclosed response to us in the space provided and returning it to us.

                                         Very truly yours,

                                         SALOMON SMITH BARNEY INC.
                                         CHASE SECURITIES INC.
                                         J.P. MORGAN SECURITIES INC.
                                         BANC OF AMERICA SECURITIES LLC
                                         GOLDMAN, SACHS & CO.

                                         By SALOMON SMITH BARNEY INC.

                                         By /s/ Jane A. Bieneman
                                            -----------------------
                                            Name:  Jane A. Bieneman
                                            Title: Vice President

                                         Acting severally on behalf of
                                         themselves as Underwriters


<PAGE>




                                   Schedule A





                                                             PRINCIPAL
                                                             AMOUNT OF
        UNDERWRITERS                                            NOTES
        ------------                                         ---------

       Salomon Smith Barney Inc.  ....................      $175,000,000

       Chase Securities Inc.  ........................        52,500,000

       J.P. Morgan Securities Inc.  ..................        52,500,000

       Banc of America Securities LLC ................        35,000,000

       Goldman Sachs & Co.  ..........................        35,000,000

       Total .........................................      $350,000,000


<PAGE>








                                               August 25, 1999

To:      Salomon Smith Barney Inc.
         Chase Securities Inc.
         J.P. Morgan Securities Inc.
         Banc of America Securities LLC
         Goldman, Sachs & Co.

         c/o Salomon Smith Barney Inc.
         Seven World Trade Center
         New York, NY 10048

                  We accept the offer  contained in your letter dated August 25,
1999  (including  the  provisions  of the  Underwriting  Agreement  (as  defined
below)),  relating  to  $350,000,000  principal  amount of our Debt  Securities,
subject  to the terms and  conditions  of the  Underwriting  Agreement.  We also
confirm that, to the best of our knowledge after reasonable  investigation,  (i)
the  representations  and  warranties  of the  undersigned  in the  Underwriting
Agreement   (the   "Underwriting   Agreement")   filed  as  an  exhibit  to  the
undersigned's   registration   statement  on  Form  S-3  (Nos.  333-16869)  (the
"Registration Statement") are true and correct in all material respects, (ii) no
stop order suspending the  effectiveness of the Registration  Statement has been
issued  and  no  proceedings  for  that  purpose  have  been  instituted  or are
contemplated by the Securities and Exchange  Commission and (iii)  subsequent to
the dates of the most recent financial  statements in the Prospectus (as defined
in the Underwriting Agreement) (exclusive of any supplement thereto),  there has
been  no  material  adverse  change  in  the  financial  position or  results of
operations of Crown Cork & Seal Company, Inc.

                                            Very truly yours,

                                            CROWN CORK & SEAL COMPANY, INC.

                                            By /s/ Craig R.L. Calle
                                               ----------------------------
                                               Name:  Craig R.L. Calle
                                               Title: Senior Vice President -
                                                         Finance and Treasurer