Seiko Cal. 7163 - 657

Seiko 7163-657

The 7163-657 is a sought-after Solar piece from Seiko's golden era. Powered by the 7163 caliber with 36j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-5fe26e2a38fa]

Also known as: Navigator, Emperor

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
14.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Black
Jewels
36j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1988

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