Seiko Cal. 3813 - 878

This Spring Drive model from 1978 features a 40mm Stainless Steel case. With its 19mm lug width and 15.3mm profile, it sits comfortably on most wrists. [seikata-wm-dd418ebefb37]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1978

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