Seiko Cal. 6643 - 544

This Automatic model from 1974 features a 45mm Titanium case. With its 20mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-4a370bbec457]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1974

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