CASIO PART NUMBER: 10530921
MODEL NUMBER: GA-700
O-RING MATERIAL: RUBBER
This Casio Watch O-Ring Fits ALL of the following model numbers:
ALL GA-700
ALL GA-500
All GA-900
ALL GRB-100
**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.**