Manufacturer Vostok (Boctok) Caliber Number 2431 Movement Type Automatic, self-winding mechanical Diameter 24mm Height 6.3mm Jewel Count 32 jewels (see below…) Beat Rate / Frequency 19,800 bph / 2.75 Hz
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Brand Baume & Mercier Caliber Number BM 112824, BM112824 In-House? No Base Caliber ETA 2824-2 (see below…) Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Height 4.6mm (unconfirmed) Jewel
Manufacturer Zenith Caliber Number 2572 PC, 2572PC Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Height 5.7mm Jewel Count 17 Beat Rate / Frequency 28,800 bph / 4 Hz
Brand Casio Caliber Number 5359 Movement Type Quartz, battery-powered Jewel Count 0 Frequency 32,768 Hz Accuracy Rating +/- 20 seconds/month Battery Cell # SR916SW / 373 (silver oxide, 1.55 V)
Brand Ball Watch Co. Caliber Number RR1105, RR1105-C In-House? No Base Caliber ETA 2895-2 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Height 4.35mm Jewel Count 27 Beat Rate
Manufacturer S. Epson Corp. (division of Seiko) Caliber Number YM90, YM90A Movement Type Quartz, battery-powered Lignes 12”’ Diameter 27mm Height 3.7mm Jewel Count No jewels (0) Frequency 32,768 Hz Accuracy
Brand Yema Caliber Number MBP1010, MBP-1010 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Jewel Count 31 jewels Beat Rate / Frequency 28,800 bph / 4 Hz Lift Angle
Brand Yema Caliber Number MBP1030, MBP 1030 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Jewel Count 31 jewels Beat Rate / Frequency 28,800 bph / 4 Hz Lift
Manufacturer Seiko Instruments Inc. (SII) Caliber Number PC32S Movement Type Quartz, battery-powered Lignes 10.5”’ Diameter 23.7mm Casing Diameter 18.10mm Height 4.15mm thick Jewels 0 Battery Cell Number SR626SW Quartz Type
Brand Omega Caliber Number 1164, 1164A In-House? No Based On ETA/Valjoux 7750 Movement Type Automatic, self-winding mechanical chronograph Chronometer Spec? Yes (COSC Certified) Lignes 13.25”’ Diameter 30mm Height 7.9mm Jewel
Brand CIGA Design Caliber Number CD-01, CD01 Movement Type Automatic, self-winding mechanical, skeletonized Jewel Count 24 jewels Total Parts >150 Beat Rate / Frequency 21,600 bph / 3 Hz Lift
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
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
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