Seiko Cal. 5643 - 339

This Hand-Winding model from 1977 features a 43mm Titanium case. With its 18mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-965be907569e]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1977

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