Seiko Cal. 4550 - 704

The Seiko 4550-704 represents an important milestone in Seiko's 1977 lineup. Powered by the 4550 caliber with 26j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-b8caea44914d]

Also known as: Navigator, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1977

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