Seiko Cal. 5660 - 998

The 5660-998 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5660 caliber with 22j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-57a0dd2608ab]

Also known as: UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1982

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