Seiko Cal. 3857 - 309

This Solar model from 1970 features a 37mm PVD Black case. With its 20mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-c63d9e9e81c2]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1970

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