Seiko Cal. 4427 - 957

The 4427-957 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4427 caliber with 24j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-eaeb6506dd2e]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1992

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