What’s so special
The Omega Speedmaster is undeniably known as the “moon watch”. Did you know that the first automatic chronograph in space was a Seiko? That’s right, Astronaut Colonel William Pogue ditched his standard issue Omega for a variation of this Seiko chronograph on his 1973 Skylab missions.
In addition, Albert François Cevert Goldenberg was famous for wearing a variation of the Seiko 6139-600X automatic chronograph in early 1970s Formula 1.
Why SWC loves it
The 6139B movement truly is an incredible bit of kit and far underrated. These were miles ahead of Swiss chronographs at the time. Seiko masterfully accomplished the same functionality in half the parts. In addition to being an incredible chronograph the Seiko 6139B movement features Seiko’s magic lever automatic works. This creates an incredibly efficient automatic winding in a very slim package. The slim height, unique case profile, and tapered bracelet result in a 41mm chronograph that wears incredibly well.
If that wasn’t enough, the 6139B is a vertical clutch column wheel chronograph! This enables perfect chronograph action every time without a stuttering start/stop action you find on Swiss horizontal clutch designs.
About this example
This example comes to you freshly serviced by SWC and in excellent original condition. The dial and hands are original and wonderfully preserved. The case has minor polishing but retains it’s original geometry well. The bezel is correct with some wonderful fading. Comes on a brand new Uncle Seiko tapered steel bracelet with all links still installed. All movement functions work perfectly and the watch is keeping excellent time.
Note: During service the chronograph reset action is adjusted lighter than originally designed by Seiko. This is done to preserve longevity of the chronograph seconds hand and post. Returns for slow chronograph return action on Seiko 6139B chronographs will not be accepted.
