Seiko Cal. 7139 - 347

The Seiko 7139-347 represents an important milestone in Seiko's 1987 lineup. Powered by the 7139 caliber with 28j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-f6ed6d1d9891]

Also known as: Shogun, World Timer

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

28j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1987

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