Seiko Cal. 6131 - 635

This Hand-Winding model from 1987 features a 36mm Gold-Plated case. With its 21mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-6a6b1fc0258d]

Also known as: UFO, Flighty

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1987

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