Seiko Cal. 3857 - 804

This Spring Drive model from 1980 features a 42mm PVD Black case. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-1ba0be3cf770]

Also known as: Tuna, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

35j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1980

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