Manufacturer Seiko Caliber Number 4R57, 4R57A Movement Type Automatic Lignes 12”’ Thickness 6.63mm Jewels 29 Vibrations Per Hour 21,600 bph...
Power Reserve
Manufacturer Zeitwinkel Montres S.A., CH St-Imier Caliber Number ZW0103 Base Caliber Zeitwinkel ZW0102 Movement Type Automatic Linges 13.5”’ Diameter 30.40mm...
Manufacturer Moritz Grossmann Caliber Number 100.2 Movement Type Mechanical, manual-wind Diameter 36.4mm Height 5.4mm thick Jewels 26 Components 227 Beats...
Brand Miyota (Citizen) Caliber Number 9100 Movement Type Automatic Diameter 13 1/2”’ (30.20mm) Height 5.52mm Jewels 26 Vibrations Per Hour...
Manufacturer Tudor Caliber Number MT5621, MT-5621 In-House? Yes Diameter 33.8mm Height 6.5mm Vibrations Per Hour 28,800 bph (4 Hz) Power...
Seiko caliber 9R86 found in the Grand Seiko Spring Drive model SBGC005. 50 jewels and consisting of 416 parts. Made in Japan.
