Seiko Cal. 6658 - 274

Seiko 6658-274

The 6658-274 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6658 caliber with 33j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-5cbd9c56eb89]

Also known as: Sumo, Navigator

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
12.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
200m
Dial Color
Champagne
Jewels
33j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1966

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seikata-wm-5cbd9c56eb89