Seiko Cal. 3870 - 346

This Hand-Winding model from 1986 features a 34mm Stainless Steel case. With its 21mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-c37f83b9f034]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1986

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