Seiko Cal. 3850 - 865

This Spring Drive model from 1980 features a 37mm Titanium case. With its 19mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-4366bb6d87b7]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1980

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