-Seiko This watch contains aftermarket customisations without permission from the brand. This could impact the watch value and might void manufacturer warranties , Including , polishing , aftermarket dial , hands , bracelet , crystal , bezel insert , inner ring , case back , and pushers. We ask sellers to mention any known aftermarket parts. We do not guarantee water resistance on vintage watches. Please use photos as part of the description. We ask sellers to mention any known aftermarket parts. Accuracy of + or - 5 minutes per day is acceptable for vintage watches. - Blue Pogue, Japan Calender -Model Number: 6139-6002 -Referance Number: 0N0104, Japan J -Chronograph, working and reset as new watches. -Date indicator(English and Kenji Calender), day indicator. -Case is 41mm and bracelet 20cm -All materials stainless still -There is no worn, and no scratch anywhere in glass. -Condition of watch so perfect. -Rarely clean, Classy and Collectible. -Dial is so stylish and precious colour “Blue”. -Dial, hands, inner bezel, bezel insert are aftermarket. Our Shipping partner is Fedex, We will ship in 2 working days with travel box and tracking code Why is named “Pogue” ? The Seiko “Pogue” chronograph is one of the most interesting and distinctive watches from the 1970s. They have earned the nickname the “Pogue” since Colonel William R. Pogue wore a similar watch during a NASA Skylab mission in 1973, making it the first automatic chronograph to be worn in space. Alpha Beta Watch was founded about 20 years ago by two watch lover friends. is a company that has sold many products at home and abroad