Seiko 6139 Speedtimer "Coke"

Seiko 6139 Speedtimer "Coke"

While the Swiss get all the glory for producing the first automatic chronograph in 1969, Seiko quietly released the 6139, a simple and rugged automatic chronograph movement, as early as May of the same year.

A few years ago, it was revealed that the Calibre 6139 was the first automatic movement in space--thanks to Col. Willam Pogue--making 6139-powered chronographs an awesomely affordable entry to watch history.

While Col. Pogue's watch made waves and increased the value of the Reference 6139-6002 model, other 6139-powered chronographs have remained remarkably low on the pricing spectrum, and offer a great way to enter the vintage watch world on any budget.

Seiko produced these movements on a huge scale in a variety of distinctive dial and case designs that only they could dream up, but finding them in unmolested condition has become increasingly difficult.

Several features go into this reference of 6139, the Reference 6139-6032, to make it an unusual and highly-coveted example of this attractive chronograph.

One: unlike the Pogue, the dial of this 6139 has a unique inner rotating chapter ring with orange accents and a countdown timer. This watch is often referred to having a "Coke" bezel due to its black and red color scheme, a departure from the blue-and-red "Pepsi" that typifies the bezels of other 6139s. 

With a production date of February 1970, this 6139 dates from within the first year of production. The back of its notched case (with a cutout over the crown) has "waterproof," as does the dial. This was a feature that Seiko had to change to "water resist" later in the run, making a "double proof" Speedtimer very desirable. 

Also, and most excitingly, the Reference 6139-6032 was released for the Japanese Domestic Market only. This is made evident by the presence of "Speedtimer" on the dial, as well as the Kanji date wheel, an attractive touch. The fact that this watch was only produced for the Japanese domestic market--and the fact that this is an early example--makes this a particularly difficult example to find.

Recently-serviced, fully functioning (important for this oftentimes fickle movement) and in strong condition, this Speedtimer is sure to fly away fast. 


Stainless steel case is approximately 41mm (excluding crown and pushers). Seiko Reference 6139-6032. Seiko Caliber 6139 Self-Winding Chronograph Movement. Circa 1970.

Overall Condition: Stainless steel case is in very good condition with sharp lugs, retaining its original finishing. Case does have signs of use and wear throughout. "Coke" bezel has some signs of wear throughout but is in otherwise good condition. Dial is in very good condition with crisp printing and signs of fine even patina to the luminescent elements. Unsigned crown. Seiko signed case back with "proof" has some scratches but is in otherwise very good condition.

Includes one 19mm nylon strap from Crown & Buckle.

SKU: TT01141

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