Seiko Cal. 3860 - 660

This Spring Drive model from 1991 features a 35mm PVD Black case. It features a Black dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-0026e8455df5]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1991

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