CAL. 4R36

Stainless steel case diameter 42.5 mm - Unidirectional rotating steel bezel with black IP treatment - Screw-down case back with visible movement - Water resistance 10 bar - Indexes and spheres with Lumibrite - Hardlex glass - Self-winding movement 3 balls with day / date - Frequency 21,600 vibrations / hour - 24 jewels - Power reserve of over 41 hours.