Seiko Cal. 4491 - 163

Seiko 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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seikata-wm-87336195c0bd