Seiko Cal. 4450 - 917

The Seiko 4450-917 represents an important milestone in Seiko's 1979 lineup. Powered by the 4450 caliber with 27j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-78f75bd3f775]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1979

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