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Seiko

Seiko Chronograph 6139-7070 "Baby Jumbo"

Seiko Chronograph 6139-7070 "Baby Jumbo"

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seiko

39mm

Chronograph

1970 - 1979

6139-7070

No

Automatic

Steel

Specifications

Caliber 6139

Made in 1973

Approximate dimensions:

- 40mm (case without crown)

- 45mm (between claws)

- 19mm (bracelet fitting)

Description

Vintage piece in excellent condition, showing small signs of use and time

Watch only, no original box or documentation

The wrist in the photo is approximately 17cm for reference

Learn more

At the heart of this model beats the 6139 calibre, known as the first automatic chronograph to be marketed.

This same caliber equipped the Seiko 6139-6005, with a yellow dial, which would have been the first automatic chronograph to go into space on the wrist of American Colonel William Pogue, on the Skylab 4 mission, in 1973, together with his Omega Speedmaster Professional (Moonwatch), the official watch for space missions certified by NASA.

This advert is nicknamed "Baby Jumbo" because it resembles the Seiko 6138-300X, known as "Jumbo" due to its large size.

We chose this racing-style leather strap because, in the past, these chronographs were commonly used to measure time and calculate the speed of racing cars. The moss green color gives it a military feel and harmonizes with its indexes.

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Quality

We certify that all watches have been previously evaluated and tested by experienced watchmakers we trust. Therefore, all pieces advertised are authentic and in full working order.

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