Seiko Cal. 4555 - 855

This Hand-Winding model from 1972 features a 44mm Titanium case. With its 19mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-588cef34effd]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

12.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1972

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