Seiko Cal. 4531 - 175

This Spring Drive model from 1985 features a 42mm Stainless Steel case. Powered by the 4531 caliber with 20j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-f47dcfcb4945]

Also known as: Tuna, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1985

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