Precision multi-function alarm quartz chronograph. Power Alarm Stopwatch with 1/20th second, 60 minute & 12 hour elapsed time Tachymetre. Case is solid 316L stainless steel Unidirectional, ratcheted 0-60 countdown bezel. Screw-locked crown & screw-in back. Super-Luminova advanced illumination system on hands & indexes.Glow continuously for 20 years. Hardened mineral crystal. Calendar date window. Water resistant to 100m/330 feet. 3 year battery. Diameter 38mm. Exclusive rubber & stainless steel strap with pushbutton deployment buckle. Serial numbered. 2 Year Chase Durer Manufacturer's Warranty