Seiko Cal. 4423 - 632

The Seiko 4423-632 represents an important milestone in Seiko's 1978 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-c97613b2a3be]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

23j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1978

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