Seiko Cal. 4428 - 451

The 4428-451 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-0e18395e5f3f]

Also known as: Helmet, Goldfeather

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

40m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1973

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