Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number PC21S Type Quartz, battery-powered Diameter 18.5mm Height 3.15mm thick (overall height...
TMI
Manufacturer Seiko Instruments (SII), Time Module (TMI) Caliber Number NH34, NH34A Movement Type Automatic Lignes 12”’ Diameter 27.4mm (29.36mm w/...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD77, VD77A Type Quartz Lignes 10.5”’ Diameter 23.7mm Casing Diameter 23.3mm...
Manufacturer Seiko (aka Seiko Instruments, SII) Caliber Number NH70 (aka NH70A) Movement Type Automatic Lignes 12”’ Diameter 27.4mm Casing Diameter...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD51B Type Quartz Lignes 12 3/4”’ Diameter 29.5mm x 26mm (smaller...
Manufacturer Seiko Caliber Number NH25A (aka NH25) Movement Type Automatic Lignes 12”’ Diameter 27.40mm Casing Diameter 29.36mm Height 5.32mm Jewels...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD55B Type Quartz Size Unknown (Please add to the comments below)...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK67, VK67A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.8mm x 29.10mm)...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) aka Time Module (TMI) Caliber Number PC21J Type Quartz Lignes 6 3/4”’ x...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD53B Type Quartz Size 12.75”’ (29.5mm) Height 4.57mm thick Jewels 0...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number PC33A, PC33 Type Quartz Size 10.5”’ Diameter 23.7mm Height 4.15mm Jewels...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD53, VD53A, VD53B, VD53C Type Quartz Linges 12 3/4”’ Diameter 29.50mm...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK83, VK83A Type Quartz (mecaquartz) Diameter 13 1/2”’ (30.8mm x 29.10mm)...
Manufacturer Seiko Instruments Inc (SII), TMI (Time Module) Caliber Number NH36A (aka NH36) Movement Type Automatic, self-winding mechanical Lignes 12”’...
Manufacturer Seiko (aka Seiko Instruments, SII) Caliber Number NH71 (aka NH71A) Movement Type Automatic Lignes 12”’ Diameter 27.4mm Casing Diameter...
Manufacturer Seiko Caliber Number NH05A (aka NH05) Movement Type Automatic, self-winding mechanical Lignes 7 3/4”’ Diameter 17.5mm Height 5.92mm Jewels...
Manufacturer Seiko Instruments Inc. / SII / Hattori / TMI Caliber Number VH31, VH31A, VH31B Type Quartz (mechaquartz), battery-powered Lignes...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VK63, VK63A Movement Type Quartz (mecaquartz), battery-powered Lignes 13 1/2”’ Diameter...
There is a lot of confusion in the watch community about Seiko and Seiko-related watches and movements. Most of the...
Manufacturer Seiko Instruments Inc. / SII / Hattori / TMI Caliber Number VH60, VH60A, VH60B Type Quartz Lignes 10.5”’ Diameter...
Manufacturer Seiko Instruments Inc. (SII) / Time Module Inc. (TMI) Caliber Number NH15A (aka NH15) Movement Type Automatic, self-winding mechanical...
Manufacturer Seiko Instruments Inc. aka SII / Hattori / TMI Caliber Number VK64, VK64A Movement Type Quartz (mecaquartz), battery-powered, chronograph...
Manufacturer Seiko (Seiko Instruments Inc. aka SII, Time Module Inc. aka TMI) Caliber Number NH35A (aka NH35) Movement Type Automatic,...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD54B Movement Type Quartz Lignes 12 3/4”’ Diameter 29.5mm Thickness 3.97mm...
Recent Comments
Hi Chris, glad you found the article to be helpful. Thank you for commenting :)
Ive been wanting to build a GMT watch for a while and found this article…
Found this movement in a 'Relic' ZR55086110501
Definitely a fake Mavado
Can anyone ID the movement in the picture attached to this comment?
Hello, if you read a couple of messages back I found an exploded diagram that…
I have a 586K caliber without the caliber number engraved on the bridge. It is…