Seiko Cal. 4427 - 927

This Spring Drive model from 1994 features a 37mm Hardlex-Coated Steel case. Powered by the 4427 caliber with 26j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-bea9dbe0ff71]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1994

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