Manufacturer Seiko Caliber Number 7A28, 7A28A Type Quartz Diameter 31.1mm (overall) Casing Diameter 29mm Thickness 3.5mm Battery Cell 394 (SR936SW)...
Caliber Spec
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD77, VD77A Type Quartz Lignes 10.5”’ Diameter 23.7mm Casing Diameter 23.3mm...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD51B Type Quartz Lignes 12 3/4”’ Diameter 29.5mm x 26mm (smaller...
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Recent Comments
Thank you for coming back to share your accuracy experience with the community :)
I want to add the info regarding accuracy of a/m watch. It gains abt. 4…
Thank for for taking the time to point out the error in the jewel count!…
Your comment wasn't deleted lol. It was in spam for some reason. Thanks for sharing…
The Indian watch company HMT is making something they call the Nuovo with this movement.
Hi, What movement could be used as a replacement for this discontinued model? Regards David
Movement also used in Rotary Chronograph GB03633/04