Pogue is the first automatic chronograph that been in space. That is where its nickname comes from. William Pogue wore this model of seiko in space mission in 1973 for 84 days and yellow dial (this is black dial ) photographed several times in his wrist. 6139-6030 is very rare reference in all 6139 models. This is exacly the same case and strap with Pogue but different color in dial,inner and outer bezels. Outer bezel called cola bezel unlike Pogue, which is called pepsi bezel. A nice condition Seiko 6139-6030 is on auction with some aftermarket parts ● Movement Condition - Cal 6139 is one of the best chrono movement in watch history. Working nicely and keeps time. Chrono starts, stops and resets as it should ● Dial Condition - Dial is in perfect condition, no visible faults. Luminous dial, see photos. Dial and hands are aftermarket. ● Case Condition - Case is original and in good condition. Been polished by a professional. Aftermarket dial , hands . Inner ring (aftermarket) bezel rotates both direction. Outer bezel insert is aftermarket and in good condition. Crown and buttons also aftermarket. Steel strap is aftermarket. Will fit up to 23cm wrist 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. ● Dimentions - 41.1X46.2mm without crown, very large size for that era ● Glass - Replacement glass is good condition no stratch or cracks ● Timekeeping - Keeps time, chrono functions as it should ● Production Year - 1970's ● Service History - Recently serviced. Waterproof not tested. ● Shipping - Will be packed with care and shipped insuranced with fast carriers (UPS/DHL) Usually arrives in 2-3 days. Combined shipping ● Please read description carefully. I tried to explain every detail ● Please try for reusing bubble wraps and hardbox which the watch will arrive in it. I'll pack carefully so it'll not waste