Automatic quartz 35. Visible clockwork mounted with two blue screws at 6 O’clock position. 316L Stainless steel. Chest color black. Dial with ring for 24 hours, frames for date, month and day, color white. Scratch free glass. Bottom of stainless steel and glass with the engraved reference . Design band closing with steel buckle with logo engraved, color black. Nickel free. 3 ATM waterproof. Not suited for swimming. Weight 104 gram. Diameter 44 mm. Thickness 15 mm. Including a beautiful Calvaneo 1583 box, warranty card and manual.