Learn more about the HAMBURG GMT DIN 8330 Movement:Automatic movement Laco 330, basic movement Sellita SW330-1 (Top), 25 Jewels,hour, minute, central second, 24-hour-hand, date at 4h,stop-second function, power reserve: 50 hoursCase:Stainless steel (904L) dark sandblasted with magnetic field protection,flat curved sapphire crystal with antireflecting coating on both sides,sidewise marking “DIN 8330”, stainless steel case back with airplane relief,bidirectional rotating bezel with ceramic inlay and with luminous material Superluminova C1,protected and screwed crownDial:Black mat, soft iron, arabic figures and indexes with luminous material Superluminova C1 and Dark OrangeHands:Hour and minute with white frame, additional inlay with Superluminova C1,second hand with luminous material Superluminova C1, tip of GMT hand with Superluminova Dark OrangStrap:Black, water-repellent Fibertech strap, dark sandblasted stainless steel buckle,screwed bars, width 20 mmBox:Aluminium box including “DIN 8330” keyholderdiameter:43,5 mmheight:13,6 mmlug width:20,0 mmlug to lug:49,8 mmwaterproof:up to 20 ATMweight:102 g (incl. strap)Arm circumference:18,5 - 23,5 cm