Seiko Chronograph, 6139-6000

Age: February, 1970

Dimensions: 40mm wide, 19mm lugs

Features: Day, Date, Chronograph (30 min events), Tachymeter, Rotating inner-bezel, Water-resistant 70m

Notes: I landed this great example of a Seiko Pepsi Chronograph about a month ago. It's dial hasn't faded to deep blue, as most do. It still plays in the light. It's marked "proof/proof" and there's a notch above the crown, available only on the early makes of this watch. Bezel, case, and straight bracelet are in great shape. It needs a new crystal and the day function isn't advancing, so in the coming months it'll get shipped out for service.

Seiko Chronograph, 6139-6005

Age: June, 1973

Dimensions: 40mm wide, 19mm lugs

Features: Day, Date, Chronograph (30 min events), Tachymeter, Rotating inner-bezel, Water-resistant 70m

Notes: This was another try at a good 6139, and my first gold-dialed one. It was a nice example, but I had my sights set on a "proof/proof" from 1970 (which I landed yesterday!). This classic has found a new home.

Seiko Chronograph, 6139-6009

Age: March, 1970

Dimensions: 40mm wide, 19mm lugs

Features: Day, Date, Tachymeter, Chronograph (30 min events), Rotating inner-bezel, Mineral glass crystal, Lumed hour markers, hour and minute hands.

Notes: This is my second attempt at procuring a 6139-600X series. I've decided that I want one with a "proof", or at the very least a "resist", dial. The case is immaculate, but it has some mechanical problems. All that combines in a reluctant catch-and-release situation. The search continues...

Seiko Chronograph, 6139-6040

Age: September, 1976

Dimensions: 38mm wide, 19mm lugs

Features: Day, Date, Tachymeter, Mineral glass crystal, Fully recessed crown

Notes: This is the One That Started It All. My first Seiko, purchased in 2001 on eBay from the notorious Sophon. I should probably feel lucky that I escaped from that transaction with an actual Seiko, and not something cobbled together with an old picture and washing machine parts, seeing as I knew absolutely nothing then. This watch, missing the white part of its outer bezel decal, reminds me of 1/2 of a 6138 because its sub-dial is square-shaped. The pushers don't stick, it keeps fantastic time, has the rare black (and not orange) dial, and takes curved end-pieces of some unique radian (because I can't find a match after all these years for a bracelet), and I'll never, ever sell it.

Seiko Chronograph, 6139-6005

Age: Aug, 1973

Dimensions: 40mm wide, 19mm lugs

Features: Day, Date, Chronograph w/30 min sub-dial, Tachymeter, Rotating inner-bezel

Notes: I took a flier on this one, as the seller posted a terrible picture, knowing that it was a bit of a crap-shoot. The case is very crisp, but the outer-bezel insert is badly faded. The inner-bezel is a somewhat rare gray in combination with the black dial. It still has the original bracelet, which is pretty rare on a watch of this age. There are some mechanical problems with it that my watchmaker seemed to shy away from, so I will probably end up selling it at some point.