Seiko Cal. 5666 - 888

Seiko 5666-888

The 5666-888 is a sought-after Solar piece from Seiko's golden era. Powered by the 5666 caliber with 17j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-9b3cad53720f]

Also known as: Sumo, Helmet

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
41mm
Case Thickness
11.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Cream
Jewels
17j
Frequency
36,000 bph
Power Reserve
47 hours
Year
1967

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