THIS IS A GENUINE CASIO FACTORY REPLACEMENT PACKING O-RING (BACK GASKET)
Part No 10314249
Note: It is recomended to use a light lubricant to get a proper seal
This goes with the following models:
| MODEL | TYPE | YEAR |
| CASIO SGW-200-1V | Time Piece Division: Sport Watch | 2009 |
| CASIO SGW-200-2V | Time Piece Division: Sport Watch | 2009 |
| CASIO SGW-200B-1V | Time Piece Division: Sport Watch | 2009 |
| CASIO PRS-400B-2V | Time Piece Division: PRO TREK Watch | 2003 |
