Seiko Cal. 3875 - 550

This Spring Drive model from 1989 features a 42mm Stainless Steel case. Powered by the 3875 caliber with 34j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-afb2e42e12ca]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1989

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