Seiko Cal. 4491 - 880

The Seiko 4491-880 represents an important milestone in Seiko's 1974 lineup. Powered by the 4491 caliber with 27j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-39121cd43b74]

Also known as: UFO, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Green

Jewels

27j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1974

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