Manufacturer Tianjin Sea-Gull Caliber Number ST1731, ST-1731, TY2718, TY-2718 Base Caliber Seagull ST1701 (ST17 series) Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 26mm Height 5.12mm Jewel Count 20 Beat
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Manufacturer S. Epson Corp. (Seiko) Caliber Number VX3H, VX3HA, VX3HE Movement Type Quartz, battery-powered Lignes 10.5”’ Diameter 24mm Casing Diameter 23.3mm Height 3.05mm Jewels Count 1 jewel Frequency 32,768 Hz
Brand Orient Watch Co., Ltd. Caliber Number 48N40 Movement Type Mechanical, manual-wind Jewel Count 21 jewels Beat Rate / Frequency 28,800 bph / 4 Hz Lift Angle Unconfirmed Accuracy Rating
Manufacturer Patek Philippe Caliber Number CH 29-535 PS Q Movement Type Mechanical, manual-wind, chronograph Diameter 32mm Height 7mm Jewel Count 33 jewels Total Parts 456 Beat Rate / Frequency 28,800
Manufacturer Tianjin Sea-Gull Caliber Number TY2872 / ST1655 (ST-1655) Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 26mm Height 6.4mm Jewel Count 21 jewels Beat Rate / Frequency 21,600 bph
Brand Yema Caliber Number CMM.20 In-House? No (manufacture movement) Movement Type Micro-rotor automatic, self-winding mechanical Diameter 32.2mm Height 3.7mm Jewel Count 33 jewels Parts Count 190 components Beat Rate /
Manufacturer Orient Star Caliber Number F7M65 In-House? Yes Movement Type Automatic, self-winding mechanical Jewel Count 22 jewels Beat Rate / Frequency 21,600 bph / 3 Hz Accuracy Rating -5 ~
Brand S. Epson Corp. (Seiko) Caliber Number VR32B, VR32 Movement Type Quartz, battery-powered Lignes 13.5”’ Diameter 31.2mm x 28mm Casing Diameter 30.6mm Height 3.97mm Jewel Count No jewels (0) Frequency
Brand 1776 Atelier Caliber Number 621.1788 In-House? No (see below…) Base Caliber ETA/Unitas 6498-1 Movement Type Mechanical, manual-wind Diameter Unconfirmed Height Unconfirmed Jewel Count 17 Beat Rate / Frequency 21,600
Manufacturer Seiko Instruments Inc. (SII) / Time Module Inc. (TMI) Caliber Number NH15A (aka NH15) Movement Type Automatic, self-winding mechanical Lignes 10.5”’ (10 1/2”’) Diameter 23.8mm Casing Diameter 23.4mm Height
Manufacturer PTS-Resources Caliber Number JHLS-32, JHLS32 Movement Type Automatic, self-winding mechanical Diameter 34.6mm Height 7.35mm Jewel Count 47 Beat Rate / Frequency 21,600 bph / 3 Hz Lift Angle Unconfirmed
Manufacturer Orient (Seiko Epson) Caliber Number 46B46 In-House? Yes Movement Type Automatic, self-winding mechanical Lignes unconfirmed Diameter unconfirmed Jewels 21 Beat Rate / Frequency 21,600 bph / 3 Hz Lift
Manufacturer Citizen Watch Co. Caliber Number 2502, 2502M, M-2502 Movement Type Quartz, battery-powered Jewel Count No jewels (0) Frequency 32,768 Hz Accuracy Rating +/- 15 seconds/month Battery Cell # SR920SW
Brand A. Schild Caliber Number 1595, AS1595, AS 1595 Base Caliber A. Schild 1560 Movement Type Mechanical, manunal-wind Lignes 13”’ Diameter 29mm Overall Diameter 29.4mm Height 4.10mm Jewel Count 17
Manufacturer Seiko Time Corp. Caliber Number 4N30, 4N30A, 4N30B, 4N30C In-House? Yes Movement Type Quartz, battery-powered Lignes 4.75”’ x 6.5”’ Diameter 10.8mm x 14.5mm Height 3.25mm Jewel Count No jewels
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