Manufacturer Seiko Caliber Number 6810 In-House? Yes Base Caliber Seiko 68A Similar Calibers Credor 6810, 6810A Movement Type Mechanical, manual-wind...
Credor
Brand Credor (Seiko Watch Corporation) Caliber Number 7R31, 7R31A In-House? Yes Movement Type Spring Drive, manual-wind Diameter Unconfirmed Height Unconfirmed...
Recent Comments
Militado got this movement
Henry Archer Vesterhav. Mine is running at +2 sec/day. I do wish that the movement…
Step 1) Set the time correctly. Step 2) Wait 24 hours. Step 3) Compare the…
The wonderfully underrated Festina Automatic Skeleton (20632/1) also uses this movement. It keeps time better…
17 is the grout number. ST1701 is the specific automatic calibre and ST1700 the manual…
Duzu Watches of Western Australia use this movement in their DW-D3 diver range