Seiko Cal. 4423 - 755

The Seiko 4423-755 represents an important milestone in Seiko's 1988 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-50ad6970ef06]

Also known as: Monster, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1988

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