Seiko Cal. 4423 - 613

The 4423-613 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4423 caliber with 24j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-351c4cb22e2f]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1981

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