Seiko Cal. 5663 - 539

The 5663-539 is a sought-after Solar piece from Seiko's golden era. Powered by the 5663 caliber with 29j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-5193e42e7bd2]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1977

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