Seiko Cal. 6310 - 939

This Quartz model from 1979 features a 40mm Hardlex-Coated Steel case. With its 21mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-35489240a2a7]

Also known as: UFO, World Timer

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1979

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