Seiko Cal. 4423 - 744

The Seiko 4423-744 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-c09bf0081a05]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1981

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