Seiko Cal. 3847 - 170

This Hand-Winding model from 1966 features a 44mm Hardlex-Coated Steel case. With its 19mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-d20e7fb85d65]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1966

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