Seiko Cal. 4573 - 443

The Seiko 4573-443 represents an important milestone in Seiko's 1976 lineup. Powered by the 4573 caliber with 17j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-6d08391fdcf2]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

17j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1976

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