Seiko Cal. 5674 - 139

This Spring Drive model from 1968 features a 34mm PVD Black case. Powered by the 5674 caliber with 21j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-228fdc276c35]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

White

Jewels

21j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1968

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