Seiko Cal. 4579 - 939

The 4579-939 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4579 caliber with 31j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-3578ea750c8c]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1997

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