Seiko Cal. 5231 - 452

This Hand-Winding model from 1974 features a 45mm Hardlex-Coated Steel case. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-8c8f07f54ee7]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1974

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