Seiko Cal. 3857 - 966

This Spring Drive model from 1991 features a 45mm PVD Black case. With its 18mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-b35b7bbdff6e]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1991

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