Seiko Cal. 7139 - 351

The Seiko 7139-351 represents an important milestone in Seiko's 1983 lineup. Powered by the 7139 caliber with 33j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-50e5f4dda123]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1983

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