Guaranteed genuine & from my personal collection of watches: Citizen - Oxy 'Eco-Drive' Air Diver 20OM - model no. 7872-L15022-Y - GN-4-S - Mens divers watch Eco-Drive is a model range of watches manufactured and marketed worldwide by Citizen Watch Co., Ltd., powered primarily by light. Citizen Black(Solar) Dial. Signed Citizen Oxy 'Eco-Drive' Air Diver 20OM Luminous display & hour/minute hands. Red second hand Date window at 3 o'c Citizen Eco-Drive light powered, in full working order Stainless steel/midnight blue bezel, roates corrctly & clicks Fully signed Citizen Stainless Steel case, c. 40mm. with crown, 44mm. lug to lug. Fully signed steel case back, serial No. 640002 Citizen crown, stainless steel Original signed steel strap fit c.18cm - can be changed at time of sale, ask for more info - available to change to NATO style military strap if preferred. Check out my other auction - additional watches on the same order are DELIVERED FREE WORLDWIDE. _____________________________________________________________ Please study photos for condition, any questions welcomed. Wear & tear commensurate with age. Sent via Fully insured Royal Mail tracked & signed for insurance where available Water pressure/resistance unchecked Thank you for checking out my auction, please check others, new ones always being added.