Chase Durer - Pilot Commander Alarm Chronograph - Black Face - Stainless

Precision Multi-Function OS80 Power Alarm Quartz Chronograph Features 1/20th Second, 60 Minutes, and 12 Hour Accumulated Elapsed Time Case in Solid Brushed 316L Stainless Steel Bracelet in Solid Brushed 316L Stainless Steel with Deployment Buckle and Double Lock Security Clasp Screw-Locked Crown and Screw-In Back Crown Shoulder Guard Unidirectional Ratcheted E6B Navigational Slide Rule Bezel for Calculation of Speed, Distance and Fuel Consumption Tachymeter which displays the speed in miles per hour (or kilometers per hour) over a measured distance of one mile or one kilometer or portions thereof. Super-LumiNova advanced illumination system on hands and indexes Alarm Indicator Sapphire Scratch Resistant Crystal Calendar Date Window Water Resistant to 100m (330ft) Diameter is 43.5mm, Thickness is 11mm, and Weight is 4.8oz