Seiko Cal. 4491 - 163

The 4491-163 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4491 caliber with 34j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-87336195c0bd]

Also known as: UFO, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1990

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