Manufacturer Seiko (Seiko Instruments Inc. aka SII, Time Module Inc. aka TMI) Caliber Number NH35A (aka NH35) Movement Type Automatic,...
Japan
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Manufacturer Seiko Caliber Number 7S26 Replaced By 4R36 Movement Type Automatic Diameter 27.4mm Casing Diameter 27mm Height 4.8mm thick Jewels...
Manufacturer Seiko Caliber Number 4R36, 4R36A Movement Type Automatic Diameter 27.4mm (casing 27mm) Thickness 5.32mm Jewels 24 Vibrations Per Hour...
Brand Orient Caliber Number F6922 In-House? Yes Movement Type Automatic Lignes 12.1”’ (needs confirmed) Diameter 27.4mm (needs confirmed) Jewels 22...
Manufacturer Seiko Caliber Number 7S36, 7S36C Movement Type Automatic Jewels 23 Vibrations Per Hour 21,600 bph Shock System Seiko Diashock...
Manufacturer Seiko Caliber Number 4R35, 4R35A, 4R35B Movement Type Automatic Diameter 27.4mm (casing 27mm) Thickness 5.32mm Jewels 24 23 (see...
Brand Miyota (Citizen) Caliber Number 8215 Movement Type Automatic, self-winding mechanical Linges 11.5”’ Diameter 26mm Height 5.67mm (7.4 overall) Min...
Brand Miyota (Citizen) Caliber Number 9015 Movement Type Automatic, self-winding mechanical Jewels 24 Linges 11.5”’ Diameter 26mm Height 3.9mm thick...
Brand Seiko Caliber Number 6309, 6309A Movement Type Automatic Lignes 12”’ Diameter 27mm Height 5.3mm thick Jewels 17 Vibrations Per...
Brand Citizen Caliber Number 8213 Base Caliber 8200/8210 Similar Caliber Miyota 8218 Movement Type Automatic Jewels 21 Diameter 11.5”’ (25.6mm)...
Manufacturer Seiko Instruments Inc. aka SII / Hattori / TMI Caliber Number VK64, VK64A Type Quartz (mecaquartz), chronograph Lignes 13.5”’...
Brand Miyota (Citizen) Caliber Number 821A Base Caliber Miyota 8215 Movement Type Automatic Lignes 11.5”’ Diameter 26mm Height 5.67mm Jewels...
Manufacturer Seiko Caliber Number 7T62 / 7T62A Type Quartz Diameter 12”’ (24.1mm x 27.6mm) Thickness 3.3mm Jewels 0 Battery Cell...
Manufacturer Seiko Instruments Inc. / SII / Hattori / TMI Caliber Number VH31, VH31A Type Quartz (mechaquartz) Lignes 10.5”’ Diameter...
Manufacturer Miyota (Citizen) Caliber Number 9039 Base Framework 9015 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 26mm Thickness 3.90mm...
Manufacturer Seiko Caliber Number 4R57, 4R57A Movement Type Automatic Lignes 12”’ Thickness 6.63mm Jewels 29 Vibrations Per Hour 21,600 bph...
Manufacturer S. Epson Corp. (Seiko/Hatori) Caliber Number Y121, Y121E Type Quartz Lignes 6 3/4”’ x 8”’ Diameter 15.3mm x 18.2mm...
Brand Miyota Caliber Number 9075 Movement Type Automatic Lignes 11.5”’ Diameter 26mm Height Unconfirmed (see comments) Jewels 24 Beat Rate...
Manufacturer Grand Seiko Caliber Number T-Zero (T0) Movement Type Tourbillon, manual-wind In-House? Yes Diameter 36mm Thickness 8.22mm (total) Jewels 43...
Manufacturer Seiko Caliber Number 7T92 / 7T92A Type Quartz Diameter 12”’ (24.1mm x 27.6mm) Thickness 3.3mm Jewels 0 Battery Cell...
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 VK63, VK63A Movement Type Quartz (mecaquartz) Lignes 13 1/2”’ Diameter 30.80mm...
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number VD53, VD53A, VD53B, VD53C Type Quartz Linges 12 3/4”’ Diameter 29.50mm...
Manufacturer Seiko Caliber Number 2906, 2906A Movement Type Automatic Diameter 18mm (casing) Height 5.35mm Jewels 17 Vibrations Per Hour 28,800...