Seiko Cal. 5666 - 578

The Seiko 5666-578 represents an important milestone in Seiko's 1967 lineup. Powered by the 5666 caliber with 30j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-7d44b49c3b48]

Also known as: World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1967

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