Manufacturer Sea-Gull Caliber Number ST1961, ST-1961 Base Caliber Seagull ST1901 Movement Type Mechanical, manual-wind, split-second chronograph Diameter 31.3mm Height Unconfirmed...
Manufacturer Patek Philippe Caliber Number 10-200 In-House? Yes Movement Type Mechanical, manual-wind Lignes 10”’ Diameter 22.5mm Height 3.65mm Jewel Count...
Manufacturer Miyota Caliber Number 3N20 Movement Type Quartz, battery-powered Lignes 5.5”’ x 6.75”’ Height 2.54mm Jewel Count 1 jewel Frequency...
Manufacturer Seiko Caliber Number 4R72, 4R72A In-House? Yes Movement Type Automatic, self-winding mechanical, skeletonized Diameter 27.4mm Casing Diameter 27mm Thickness...
Brand Orient Star Caliber Number 40S62 Manufacturer Epson (Seiko Instruments Inc.) Movement Type Automatic, self-winding mechanical Jewel Count 24 Beat...
Brand TAG Heuer Caliber Number TH31-02 In-House? No Manufacturer Sellita Manufacture AMT Movement Type Automatic, self-winding mechanical COSC? No Jewel...
Brand Frederique Constant Caliber Number FC-220 In-House? No Base Caliber Ronda 515, Ronda 505, Ronda 1016 (see below…) Movement Type...
Manufacturer Sea-Gull Caliber Number ST1780, ST-1780, TY2714 Movement Type Automatic, self-winding mechanical Diameter Unconfirmed Height 6.26mm Jewel Count 28 jewels...
Manufacturer Grand Seiko Caliber Number 9RB2, 9RB2A Movement Type Spring Drive, hybrid automatic Diameter 30mm Height 5.02mm Jewel Count 34...
Manufacturer Rolex Year Introduced 2025 Calibers Rolex 7135 Known Materials Nickel phosphorus alloy, ceramic (balance staff) Known Models Rolex Land-Dweller...
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