Seiko Cal. 4528 - 868

This Spring Drive model from 1977 features a 37mm Stainless Steel case. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-208ad80dcac1]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

50m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1977

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