ProTek Official USMC Series 1015

42mm Carbon Composite Case and Bezel, with Screw-on Stainless Steel Case Back. Weight: 73.2 grams. Case Thickness: 13.95mm United States Marine Corps Logo Embossed Caseback Screw-in Crown with Rubber Grip  Sapphire Crystal with Antireflective Coating Water Resistant to 300 Meters (all watches tested to full depth rating in both air and water) Japan Quartz Miyota 2S60 3 Hand & Date Movement with 10 Year Battery (+/- 20 seconds per month) Genuine Rubber Strap (22mm x 20mm) with steel tube for the spring pin molded into the strap for added durability Swiss self-powered ProGlo T25 illumination system is 100X brighter than conventional lume and glows continuously for 25 years without a need to be "charged" by an external light source.