The serial number dates this example to May of 1977, pretty late in the scheme of things. The 6139-600X model chronographs came in gold, dark blue, and silver dials, and are often referred to as. The “Pogue” chronograph because astronaut William Pogue wore one of the gold-dialed versions into space, as described in detail here. This is something of a controversial statement, but the 6139 is generally regarded as the first commercially-available automatic chronograph watch, and along with the later 6138 is one of the two classic Seiko chronograph movements from the 70s. Mechanically, the watch will tick a little when shaken, but it stops pretty quickly. The chronograph buttons do nothing, and I would guess that the chronograph is disengaged because even when ticking the seconds hand stays still. The day and date both change properly, both when the hands pass midnight and via the quickset (you depress the crown partway to change just the date, all the way to change both). The internal bezel doesn’t turn at all, though. Cosmetically, it has pros and cons. The outer bezel and inner bezel are both really gorgeous, with no meaningful wear. The case has some marks here and there, but shows its original brushed finish very well, and definitely hasn’t been polished. The dial and hands look OK, but the lume on both is pretty grungy, especially the lume on the minute hand, which is basically black. The crystal looks decent overall, but definitely shows a few scratches. The caseback has an engraving on it – D. Note that I also have another example of the same model up for sale, but that one is working and in great cosmetic shape. I’m an amateur collector of vintage Japanese watches, mostly Seiko and Citizen. Please examine all photos as they are part of my description. The item “Vintage’77 Seiko 6139 Chrono Pogue Watch, for parts/repair” is in sale since Wednesday, February 01, 2017. This item is in the category “Jewelry & Watches\Watches, Parts & Accessories\Wristwatches”. The seller is “seikocitizencollector” and is located in Los Angeles, California. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, SE, KR, ID, to Taiwan, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, NO, SA, UA, AE, QA, KW, BH, HR, MY, CL, CO, CR, PA, TT, GT, SV, HN, JM, AG, AW, BZ, DM, GD, KN, LC, MS, TC, BB, BD, BM, BN, BO, EC, EG, GF, GG, GI, GP, IS, JE, JO, KH, KY, LI, LK, LU, MC, MO, MQ, MV, NI, OM, PK, PY, RE.

• Brand: Seiko
• Gender: Men’s
• Features: Day & Date
• Movement: Mechanical: Automatic
• Year of Manufacture: 1970-1979
• Display: Analog
• Case Material: Stainless Steel
• Model: 6139-6005
• Serial Number: 754485