Hamilton, Jazzmaster Auto Chrono, Exclusive Swiss Automatic mechanical chronograph movement Hamilton H-21 Swiss calibre based Valjoux/ETA 7750, 25 Jewels, ıncabloc Date index; quickset All Stainless steel case Diameter: 42 mm without crown The see-through(Transparent) case back Case Reference: 326160 Water resistant: 10 ATM- 330 FT. - 100 meters Crystal material: Sapphire Strap: Silicone, unbranded Strap lug width: 22 mm The crowns and The clasp are original Hamilton Very good condition with thin traces of use Machine and functions work perfect Read the Terms and Conditions and review the photos very carefully before buying. The watch will be carefully and properly packed and shipped by registered and tracked UPS and FEDEX for worldwide Fast and safe shipping. Estimated delivery time: 3-8 business days Custom fees belongs to the buyers