Seiko Cal. 4445 - 553

The Seiko 4445-553 represents an important milestone in Seiko's 1974 lineup. Powered by the 4445 caliber with 20j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-88cba50c4219]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1974

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