Seiko Cal. 5638 - 615

The 5638-615 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5638 caliber with 35j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-0ec9f48dce0d]

Also known as: Sea Horse, Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

35j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1976

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