Seiko Cal. 5638 - 566

The 5638-566 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5638 caliber with 28j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-63bed57d47a2]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Champagne

Jewels

28j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1986

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