Seiko Cal. 3857 - 378

This Spring Drive model from 1982 features a 43mm Hardlex-Coated Steel case. With its 20mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-9a85c125a7e0]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1982

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