Seiko Cal. 4413 - 620

The Seiko 4413-620 represents an important milestone in Seiko's 1973 lineup. Powered by the 4413 caliber with 23j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-36262fddb3b8]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

23j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1973

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