Movement:Optional automatic or handwindingCase:Stainless steel case, optionally with brushed or dark sandblasted finish, with or without engraving on the side FL23883, screw-down crownGlass:Double domed sapphire crystal, anti-reflective coating on one side, optional anti-reflective coating on both sidesBase:Optional screwed, closed back or visible back with sapphire crystalWaterproof:up to 20 ATMDial:Black matt or dark blue with sunburst finish or green with sunburst finish, numbers and indexes covered with Superluminova C3, optionally with date display in light, black or dark blue, with or without logo, Proportionally adapted to the enclosure sizeHands:Thermal blued hands, filled with luminous material Superluminova C3Strap:Calfskin strap in black, brown or vintage brown optionally with or without rivets, alternatively a metal strap is available.The leather used is a natural product and makes each watch strap unique. It may therefore have slight variations in color and structure.Box:Watch box incl. cardboard box Ø 37 mmØ 40 mmØ 43 mmheight:10,95 mm 11,35 mm11,45 mmlug width:18,0 mm20,0 mm22,0 mmvisible dial diameter:Ø 31 mmØ 34 mmØ 37 mmlug to lug:44,5 mm47,5 mm50,5 mmwaterproof:up to 20 ATMup to 20 ATMup to 20 ATMweight (with leather strap):66,0 g (incl. strap)72,0 g (incl. strap)80,0 g (incl. strap)weight (with stainless steel bracelet):101,0 g (incl. bracelet)113,2 g (incl. bracelet)140,0 g (incl. bracelet)Arm circumference (with leather strap):13-19,5 cm14-20,5 cm14-21 cmArm circumference (with stainless steel bracelet):14,5-19 cm16-20,5 cm17-22 cm