Seiko Cal. 3870 - 423

This Spring Drive model from 1985 features a 34mm Stainless Steel case. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-ebabb65dcd9e]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1985

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