MAINSPRING
For Seiko 7731-5240
X/1860
Alternate: 8266/1-AS 943
Movement Listing
This part is also used by the following movements:
| Movement | Description | Ligne |
|---|---|---|
| Citizen 4-223446 | CITIZEN CASE | |
| Citizen 4-327241 | CITIZEN CASE | |
| Omega 16925 | OMEGA USES CALIBER 440 | |
| Citizen 4-471849 | CITIZEN CASE | |
| Citizen 4-940377 | CITIZEN CASE | |
| Winton 461-17 | AURORE 122 | |
| Citizen 4-R08856 | CITIZEN CASE | |
| Citizen 4-S68326 | CITIZEN CASE | |
| Citizen QD2134 | CITIZE CASE REFERENCE | |
| Seiko 4300-3330 | SEIKO CASE REFERENCE | |
| Illinois 657 | 11.5 | |
| Omega 16925 | OMEGA USES CALIBER 440 | |
| Omega 591.951 | OMEGA CASE USES CALIBER 1387 | |
| Precision 101-102 | (101-21JL) (102-23JL) SHOCK | 5.75 x 7 |
| Ronda 774 | QUARTZ ANALOG DSS CALD (HAND) | 7.75 |
| Seiko 0903-7019 | SEIKO CASE REFERENCE | |
| Seiko 2949-008A | SEIKO CASE REFERENCE | |
| Seiko 4300-3330 | SEIKO CASE REFERENCE | |
| Seiko 4N21-0640 | SEIKO CASE REFERENCE COSERVE 2003/2004 | |
| Seiko 6600-7061 | SEIKO | |
| Seiko H357-5160 | SEIKO CASE REFERENCE | |
| Seiko V827-0230 | SEIKO CASE REFERENCE | |
| Winton 461-17 | AURORE 122 |
