Specifications Model:ST1901 Diameter: 38mm(40mm) Thickness: 10mm Buckle: Pin Buckle Dial Window: Sapphire Glass Material: 316L Stainless Steel Movement: Sea-Gull 1901 Waterproof: 50m (5 ATM) Warranty: one year warranty. Buy with confidence. Classic design Exhibition case back Mechanical chronograph movement Stainless steel case brand new Free an extra leather strap. If you want 40mm watch, please make a note when you paid Thanks.
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