Seiko Cal. 3891 - 744

This Hand-Winding model from 1971 features a 40mm PVD Black case. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-64c67c451cc2]

Also known as: Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1971

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