Seiko Cal. 4420 - 417

The Seiko 4420-417 represents an important milestone in Seiko's 1990 lineup. Powered by the 4420 caliber with 33j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-511086ae600e]

Also known as: Samurai, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

33j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1990

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