Seiko Cal. 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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