Seiko Cal. 4578 - 894

This Hand-Winding model from 1983 features a 46mm Hardlex-Coated Steel case. Powered by the 4578 caliber with 17j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-bb3bc04124cc]

Also known as: Monster, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Champagne

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1983

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