Invicta Venom Reserve watch, model 6051. It's got a stainless steel back and is water resistant up to 1000 meters. Some light wear but still looks pretty cool. Let me know if you want more pics or details. Ultra-rugged Invicta Venom Reserve (Model 6051) featuring a large 53.7 mm stainless steel case, Swiss Z60 quartz chronograph, Flame-Fusion crystal, and 1000 m water resistance. This tough, precision dive watch is in excellent condition, keeps accurate time, and includes the original strap. A serious tool