Seiko Cal. 5663 - 171

The 5663-171 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5663 caliber with 31j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-0c0a1f877a99]

Also known as: Turtle, UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1990

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