Seiko Cal. 4531 - 969

This Spring Drive model from 1980 features a 35mm Hardlex-Coated Steel case. With its 22mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-1c40757fd052]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1980

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