Seiko Cal. 6378 - 135

This Spring Drive model from 1978 features a 35mm Hardlex-Coated Steel case. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-9e1925fe0efd]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1978

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