Seiko Cal. 7139 - 786

This Hand-Winding model from 1989 features a 37mm Hardlex-Coated Steel case. Powered by the 7139 caliber with 34j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-c213b6993505]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1989

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