Good day to you! Selling this rare and extremly cool vintage wath in original condition with valjoux 23 Price is very low compared to other ones, please do NOT make any offer, instant reject Name : Nivada Chronomaster Aviator Sea Diver 3181 Watch type : Diver Watch Mechanism - caliber : Mechanical Valjoux 23 17 jewels 48 hours 3hz Year of manufacture : approx 60s Diameter : 38mm Thickness : 12mm Glass type : mineral glass Water resistance : value unavailable Dial color : black Case color : silver Strap color : black Strap width : 18mm Strap material : rubber fkm Strap length : 21 cm Additional functions : chronograph Condition : excellent for its age. real photos. Amp 200 and deviation 60s/day Package contains : watch, fkm 7friends strap, aftermarket box