Seiko Cal. 4531 - 198

This Spring Drive model from 1969 features a 39mm Hardlex-Coated Steel case. With its 21mm lug width and 9.6mm profile, it sits comfortably on most wrists. [seikata-wm-61f2fa14cb5e]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1969

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