Seiko Cal. 3857 - 859

This Spring Drive model from 1971 features a 43mm PVD Black case. With its 20mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-aec1fe2045d2]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1971

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