Seiko Cal. 3851 - 748

This Spring Drive model from 1966 features a 45mm PVD Black case. With its 20mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-26ee781970de]

Also known as: Tuna, Sea Horse

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1966

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