Seiko Cal. 6686 - 713

This Quartz model from 1987 features a 39mm Titanium case. With its 22mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-f0bfef6d9432]

Also known as: Sumo, Helmet

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

39mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1987

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