Seiko Cal. 4528 - 133

This Hand-Winding model from 1975 features a 45mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-be7f91347181]

Also known as: Bullhead, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1975

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