Seiko Cal. 5663 - 717

The 5663-717 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5663 caliber with 34j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-08af4da0f89a]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1995

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