Seiko Cal. 5668 - 674

Seiko 5668-674

The Seiko 5668-674 represents an important milestone in Seiko's 1985 lineup. Powered by the 5668 caliber with 19j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-0ebd8df92561]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
10.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Navy
Jewels
19j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1985

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