Seiko Cal. 3870 - 463

This Hand-Winding model from 1983 features a 40mm Titanium case. With its 21mm lug width and 13.7mm profile, it sits comfortably on most wrists. [seikata-wm-3ce583f8021a]

Also known as: Helmet, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

35j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1983

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