Seiko Cal. 4581 - 177

This Hand-Winding model from 1985 features a 37mm Stainless Steel case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-3e6804b6b344]

Also known as: Bullhead, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1985

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