CASIO PART NUMBER: 10015316
O-RING MATERIAL: RUBBER
This Casio Watch Gasket O-Ring Also Fits the Following Model Numbers:
DW-8200-1A
DW-8200-1B
DW-8200BM-1
DW-8200K-8
DW-8200LG-8
DW-8200MB-1V
DW-8200MS-8
DW-8200NK-2
DW-8200Z-1
DW-8201WC-2
DW-8201WC-7
DW-8201WC-8
DW-8201WC-9
DW-8250Y-9
GF-8230A-4
GF-8230E-9
GF-8250-9
GF-8250CM-2
GF-8250ER-2
**TO DETERMINE THE MODEL NUMBER OF YOUR WATCH YOU CAN FIND MODEL NUMBER ON THE BACK OF THE WATCH CASE. CASIO MODEL NUMBERS CAN BE A COMBINATION OF NUMBERS AND LETTERS EX: AE-2000 DBC-30 DW-6900 GA-1000 GW-3500 PRG-110 PAW-240 PRW-3000.**