Seiko Cal. 4550 - 517

The Seiko 4550-517 represents an important milestone in Seiko's 1987 lineup. Powered by the 4550 caliber with 22j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-228af659af9f]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1987

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