Seiko Cal. 5642 - 475

The Seiko 5642-475 represents an important milestone in Seiko's 1966 lineup. Powered by the 5642 caliber with 27j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-5b12de6ff418]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1966

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