Seiko Cal. 5642 - 615

The Seiko 5642-615 represents an important milestone in Seiko's 1974 lineup. Powered by the 5642 caliber with 33j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-75b38b433915]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1974

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