Manufacturer Seiko Caliber Number 4S27, 4S27A Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Jewel Count 28 jewels Beat...
Automatic Movements
Automatic movements aka self-winding mechanical watch movements do not require batteries. These calibers use the movement of your wrist to turn a rotor (osculating weight) that winds a mainspring. The stored energy is released in a controlled process through the escapement and gears that are connected to the hands which tell the time. Automatic watches are designed to not be overwound. Browse the vintage and modern automatic watch caliber database below…
Manufacturer Audemars Piguet Caliber Number 4302 Movement Type Automatic, self-winding mechanical Diameter 32mm Height 4.9mm Jewel Count 32 Total Components...
Manufacturer Forsining? T-Winner? Caliber Number DD 119, DD119 Movement Type Automatic, self-winding mechanical Diameter 32.8mm Height 5.87mm Jewel Count 17...
Manufacturer Sellita Caliber Number SW200-2 Base Caliber Sellita SW200-1 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 26mm Height 4.6mm...
Brand Tissot Caliber Number 2481 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 26mm Height 5.25mm Jewel Count 21 Beat...
Brand Alpina Caliber Number AL-650, AL650 In-House? No Exclusive? Yes Base Movement Sellita SW461-1 (previously ETA 6498-1) Movement Type Automatic,...
Brand Hublot Caliber Number HUB4100 In-House? No Base Movement ETA 7753 Movement Type Automatic, self-winding mechanical, chronograph Lignes 13.25”’ Diameter...
Brand Breitling Caliber Number 13, B13 In-House? No Base Caliber ETA 7750 Movement Type Automatic, self-winding mechanical, chronograph Chronometer Spec?...
Manufacturer Bifora / Bidlingmaier Caliber Number 111 Movement Type Automatic, manual-wind Lignes 11.5”’ Diameter 26mm Height Unconfirmed Jewel Count 17...
Manufacturer Seiko Caliber Number 8L36, 8L36A Movement Type Automatic, self-winding mechanical Jewel Count 27 Beat Rate / Frequency 28,800 bph...
Manufacturer Vostok (Boctok) Caliber Number 2431 Movement Type Automatic, self-winding mechanical Diameter 24mm Height 6.3mm Jewel Count 32 jewels (see...
Brand Baume & Mercier Caliber Number BM 112824, BM112824 In-House? No Base Caliber ETA 2824-2 (see below…) Movement Type Automatic,...
Manufacturer Zenith Caliber Number 2572 PC, 2572PC Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Height 5.7mm Jewel Count...
Brand Ball Watch Co. Caliber Number RR1105, RR1105-C In-House? No Base Caliber ETA 2895-2 Movement Type Automatic, self-winding mechanical Lignes...
Brand Yema Caliber Number MBP1010, MBP-1010 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Jewel Count 31 jewels Beat...
Brand Yema Caliber Number MBP1030, MBP 1030 Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Jewel Count 31 jewels...
Brand Omega Caliber Number 1164, 1164A In-House? No Based On ETA/Valjoux 7750 Movement Type Automatic, self-winding mechanical chronograph Chronometer Spec?...
Brand CIGA Design Caliber Number CD-01, CD01 Movement Type Automatic, self-winding mechanical, skeletonized Jewel Count 24 jewels Total Parts >150...
Brand Yema Caliber Number CMM.20 In-House? (See below…) Movement Type Micro-rotor automatic, self-winding mechanical Diameter 32.2mm Height 3.7mm Jewel Count...
Manufacturer Orient Star Caliber Number F7M65 In-House? Yes Movement Type Automatic, self-winding mechanical Jewel Count 22 jewels Beat Rate /...
Manufacturer Seiko Instruments Inc. (SII) / Time Module Inc. (TMI) Caliber Number NH15A (aka NH15) Movement Type Automatic, self-winding mechanical...
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...
Manufacturer Orient (Seiko Epson) Caliber Number 46B46 In-House? Yes Movement Type Automatic, self-winding mechanical Lignes unconfirmed Diameter unconfirmed Jewels 21...
Brand Frederique Constant Caliber Number FC-310 In-House? No Base Caliber Sellita SW200-1 AJ Movement Type Automatic, self-winding mechanical Lignes 11.5”’...
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