Seiko Cal. 5666 - 493

This Hand-Winding model from 1989 features a 46mm Titanium case. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-0a25724ed4fc]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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