Seiko Cal. 3867 - 237

This Spring Drive model from 1986 features a 45mm Titanium case. With its 19mm lug width and 15.1mm profile, it sits comfortably on most wrists. [seikata-wm-205d89e1e75c]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

15.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1986

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