Seiko Cal. 4423 - 556

This Hand-Winding model from 1988 features a 39mm Titanium case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-02737edcf5b0]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1988

Related Models

• Seiko 0777-577
• Seiko 5223-924
• Seiko 6198-253
• Seiko 0768-756
• Seiko 6633-230
• Seiko 6139-532
• Seiko 6167-571
• Seiko 0721-614
• Seiko 6346-922
• Seiko 0726-818
• Seiko 6164-305
• Seiko 4569-759