Case: >All Stainless steel 316L >Diameter: 39 mm >Glass: coated Sapphire crystal >Movement: Calibre Quartz >Case back: screw-fitted >Waterproofness: 10 ATM (100M) Dial: >Face: Natural Mother of Pearl, White, Black and Diamonds >Hands: patended "off-Shore" propeller second hand at 6:00 >Date calendar Bezel & Mask: >Interchangeable bezels available with diamonds >Inlay-ring plain with 4 "BTR" hexgonal decorative screws and 4 "BTR" fixing hexagonal screws. Strap: >Interchangeable Stainless steel, Stainless steel / PU, Rubber, Leather >Buckle patented in St.Steel 316L Guarantee: >2 years