Seiko Cal. 7140 - 845

This Spring Drive model from 1972 features a 37mm Stainless Steel case. Powered by the 7140 caliber with 21j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-035334b1e108]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1972

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