Seiko Cal. 4423 - 680

The 4423-680 is a sought-after Kinetic piece from Seiko's golden era. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-de5ca5553843]

Also known as: Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1990

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