Seiko Cal. 3859 - 166

This Spring Drive model from 1989 features a 43mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-a40b1d4a9190]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

50m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1989

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