![]() ![]() In fact, here's a nice example right here. That said, the 6139 is a robust movement, and great examples in good working condition can be found with relatively little effort these days. Another reason, there were many case and dial variations, obscuring the establishment of any identity. The reason you probably don't hear much of the 6139, other than the fact that it was produced by Seiko, is that it went out of production around 1980. The column wheel chronograph engages smoothly but firmly, better than many of today's entry level chronograph options. The movement also featured a day-date complication, which could be quickly set by pressing the crown into the case. The crown sits flush inside the case, leaving only the chronograph actuators protruding at the edges. The watches had a fixed tachy bezel around the dial, and an inner rotating bezel ring. So what set Seiko's 6139 apart from the well covered El Primero and Caliber 11? It was called a "speed timer" by its fans, due to its sole 30-minute register at 6 o'clock. For a more comprehensive breakdown of the race to bring the first automatic chronograph to market, see Jeff Stein's Project 99. In the background of all this noise was Seiko, quietly producing their automatic chronograph, and releasing it to the Japanese market as early as May '69. ![]() While Zenith may have announced their achievement first (Jan '69), the group behind the Heuer Caliber 11 seems to have made it to the global market the earliest (Aug '69). But there was a third contender back in 1969, from the other side of the world, it was Seiko's 6139. From the world’s first automatic chronographs equipped with both vertical clutch and column wheel to Japan’s first wristwatches to feature a stopwatch, Seiko has set a long tradition of innovation in its stride. The El Primero and the Caliber 11 enjoy a healthy fan base to this day, and deservedly so. While two of the movements involved are most often profiled, the third is relatively unknown to most enthusiasts. It's been discussed here and elsewhere many times, the controversy surrounding the title of 'first automatic chronograph' can be polarizing, but often comes down to a matter of opinion. ![]()
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