Seiko Cal. 3863 - 250

This Quartz model from 1977 features a 36mm Hardlex-Coated Steel case. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-deb74ca28641]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

20j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1977

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