Seiko Cal. 5687 - 308

This Spring Drive model from 1977 features a 34mm Two-Tone case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-9770b23063d3]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

50m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1977

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