Seiko Cal. 4555 - 657

This Hand-Winding model from 1982 features a 41mm Titanium case. With its 21mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-1f0a918317f0]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1982

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