Seiko Cal. 6161 - 331

This Spring Drive model from 1979 features a 46mm Hardlex-Coated Steel case. With its 19mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-c4303a2f0f3a]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

35j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1979

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