Seiko Cal. 3870 - 346

This Spring Drive model from 1979 features a 46mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-3cc6e87fe668]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1979

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