Seiko Cal. 7139 - 673

This Spring Drive model from 1973 features a 36mm Gold-Plated case. Powered by the 7139 caliber with 27j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-bb450f0c3b55]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1973

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