Seiko Cal. 7139 - 180

Seiko 7139-180

The Seiko 7139-180 represents an important milestone in Seiko's 1988 lineup. Powered by the 7139 caliber with 34j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-2af53899eeff]

Also known as: Helmet, Navigator

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
White
Jewels
34j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1988

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