Most of you probably know what the Speedy and the Pogue have in common. What you might not know is that the eponymous Colonel William Pogue took his Seiko 6139 chronograph on the 1973' Skylab 4 space mission of his own accord, without authorization from NASA. The lad even wore it on his main hand while delegating his NASA-mandated Speedmaster to his off-hand. (That would make The Pogue the first automatic chronograph wristwatch worn in space, in case you're wondering.)
And as if its backstory wasn't cool enough, the 6139-6000 seen here is also powered by Seiko's first self-winding chronograph movement, which made its debut around the same time as Zenith's El Primero.
This specific reference features the rare caliber 6139A instead of the more common 6139B. That, together with the "Chronograph Automatic" and "Water 70 Proof" scripts on the dial and the "Waterproof" engraving on the caseback, reveals that it was manufactured for the Japanese domestic market in 1969 - the caliber 6139's first year of manufacture.
And as if its backstory wasn't cool enough, the 6139-6000 seen here is also powered by Seiko's first self-winding chronograph movement, which made its debut around the same time as Zenith's El Primero.
This specific reference features the rare caliber 6139A instead of the more common 6139B. That, together with the "Chronograph Automatic" and "Water 70 Proof" scripts on the dial and the "Waterproof" engraving on the caseback, reveals that it was manufactured for the Japanese domestic market in 1969 - the caliber 6139's first year of manufacture.
