Seiko Cal. 3865 - 646

This Spring Drive model from 1972 features a 46mm PVD Black case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-65e713d79858]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

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