Seiko Cal. 7159 - 831

Seiko 7159-831

The 7159-831 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7159 caliber with 33j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-e5b9aeb35f56]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
12.0mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
150m
Dial Color
Green
Jewels
33j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1971

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