Specifications
Model: Speedmaster Professional Sapphire Sandwich
Movement: Caliber 1863
Power Reserve: 48 Hours
Water Resistance: 50m
Bezel: Tachymetre
Crown: Screwdown
Crystal: Sapphire
Diameter: 42mm
Thickness: N/A
Weight: N/A
Bracelet: Steel
Lug Width: 20mm
Watchwinder Direction: Manual
Reference (Examples): 3573.50.00, 3873.50.31
Movement Information
Manual Winding, Chronograph
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