Seiko Cal. 7139 - 254

This Hand-Winding model from 1978 features a 41mm Titanium case. With its 20mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-8e8b0d26b6b1]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

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