Seiko Cal. 5668 - 394

The Seiko 5668-394 represents an important milestone in Seiko's 1968 lineup. Powered by the 5668 caliber with 26j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-5ac5adb1a243]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Champagne

Jewels

26j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1968

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