Seiko Cal. 7139 - 743

This Spring Drive model from 1967 features a 39mm Titanium case. Powered by the 7139 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-b492f50b9590]

Also known as: Crown, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1967

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