Seiko Cal. 3892 - 718

This Spring Drive model from 1988 features a 36mm Two-Tone case. With its 20mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-56a49a5ff8f9]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

36mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1988

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