Seiko Cal. 4423 - 778

The Seiko 4423-778 represents an important milestone in Seiko's 1989 lineup. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-e6befa7ba413]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1989

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