Seiko Cal. 4591 - 150

This Hand-Winding model from 1980 features a 43mm Titanium case. With its 18mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-eb7bb90a07dd]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1980

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