Seiko Cal. 5664 - 898

The Seiko 5664-898 represents an important milestone in Seiko's 1972 lineup. Powered by the 5664 caliber with 24j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-fe0d23e4eeb2]

Also known as: Monster, Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1972

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