Seiko Cal. 4550 - 917

The 4550-917 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4550 caliber with 34j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-2c0e32c91cc7]

Also known as: Pogue, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1972

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