A blue dial on any 70’s Seiko is always a bonus, but when it is a chronograph then even better. Model reference 6139-7070.
HOW DO WE DATE THIS WATCH?
From the serial number on the case back we can accurately date this watch to being made in 1977.
CONDITION
The Seiko 6139 chronograph movement was launched in 1969, and it (alongside the Zenith El Primero and the Calibre 11 from Heuer/Breitling/Buren/Hamilton) has a claim to be the first automatic chronograph. It was definitely the first automatic chronograph used in space, by Col. William Pogue (where a gold dialed version gets it nickname) on his 84 day Skylab 4 mission in 1974. So in short it is highly respected. While it has quickset day and date, it doesn’t have a constant seconds hands or the ability to manually wind it. The pushers work well, but the quick set date change is operated by pushing the crown inwards can be a little sticky – easily pulled back out by a fingernail though. One deep press changes the day of the week between English and Kanji, one shallow press advances the date by one. The glass has been changed and the case looks to have been polished too. The dial and hands are both good, and the white hands against the blue dial provide a great contrast, making it very legible. The blue leather strap is new, and could be swapped for a different colour if preferred.
This watch will be supplied with our branded presentation box and our Certificate of Authenticity.
Please see the HD video for more detail. All photos and videos are part of the description and are of the actual watch unless mentioned. We do not photoshop any pictures, and the images are copyright of birthyearwatches.com and should not be used without permission.
SIZE
Width with crown 39.8 mm
Width without crown 39.3mm
Between lugs 19 mm
Lug to lug length 45.1 mm
Case Thickness 13.8 mm
All sizes are approximate.
Included with this watch is a 3 month guarantee and free delivery to UK addresses. If you live outside the UK we can still deliver to most countries. Please see our Worldwide Shipping information, or Contact Us. Payment can be made by most credit or debit cards, bank transfer or PayPal.
From 1st September 2021 we will be planting a tree for every watch we sell, working with the International Tree Foundation (Est 1922) to make this business positive on carbon. By buying anything pre owned you are effectively reusing what already exists, but this takes it further and makes us feel good. Model reference 6139-7070