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Seiko

Seiko Chronograph 6138-0011 "UFO"

Seiko Chronograph 6138-0011 "UFO"

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Brand

seiko

Diameter

44mm

Model

Chronograph

Year

1970 - 1979

Reference

6138-0011

Water resistant?

No

Movimento

Automatic

Case material

Steel

Specifications

Caliber 6138

Made in 1974

Approximate dimensions:

- 44mm (case without crown)

- 47mm (between claws)

- 19mm (bracelet fitting)

- 15mm (thickness)

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

Popularly known as the “UFO” due to its wide, rounded case, this timepiece is one of the most iconic automatic chronographs of the 1970s.

It carries the heritage of an era in which Seiko was solidifying its global reputation for innovation and quality in mechanical watches. Its bold yet functional design reflects the sporty, robust spirit of the time.

Equipped with the Seiko 6138 automatic caliber, this chronograph is an example of advanced engineering for its time. The movement features a column-wheel chronograph function, a vertical clutch, and complications such as 30-minute and 12-hour counters, in addition to displaying the day and date. All this is combined with the reliability that made the 6138 series movements true milestones in affordable, durable watchmaking.

The large, round case design, measuring 44 mm in diameter, gives the 6138-0011 its unique and striking appearance. Its “UFO” nickname is not merely aesthetic, but also an affectionate way to describe its futuristic aura for the time.

Today, the Seiko 6138-0011 is a highly sought-after item among vintage watch collectors and enthusiasts. In addition to being an excellent performer, it carries significant historical value, symbolizing Seiko’s rise on the international stage and the boldness of its 1970s designs.

Whether for its mechanical precision or its retro visual appeal, this model continues to win admirers around the world.

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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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