Seiko Cal. 7139 - 673

Seiko 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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