Seiko Cal. 4427 - 997

This Kinetic model from 1968 features a 42mm Hardlex-Coated Steel case. Powered by the 4427 caliber with 36j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-1c0f183fca04]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1968

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