Seiko Cal. 6129 - 613

The 6129-613 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6129 caliber with 21j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-5dafea7faeea]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1976

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