Seiko Cal. 3842 - 120

This Spring Drive model from 1978 features a 40mm Hardlex-Coated Steel case. It features a Black dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-1ac3c26d4d41]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1978

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