Seiko Cal. 5668 - 123

Seiko 5668-123

The 5668-123 is a sought-after Solar piece from Seiko's golden era. Powered by the 5668 caliber with 29j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-d151875b8aa7]

Also known as: Monster, Sportsmatic

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
11.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Black
Jewels
29j
Frequency
28,800 bph
Power Reserve
42 hours
Year
1975

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