Seiko Cal. 6139 - 402

The Seiko 6139-402 represents an important milestone in Seiko's 1979 lineup. Powered by the 6139 caliber with 20j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-8297fdf66dc5]

Also known as: Sea Horse, Emperor

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1979

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