Seiko Cal. 3879 - 153

This Spring Drive model from 1968 features a 35mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-5bafb2646e52]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1968

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