Seiko Cal. 3857 - 191

This Spring Drive model from 1970 features a 38mm Two-Tone case. With its 22mm lug width and 11.7mm profile, it sits comfortably on most wrists. [seikata-wm-784d38f957da]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

35j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1970

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