Seiko Cal. 4443 - 523

Seiko 4443-523

The 4443-523 is a sought-after Quartz piece from Seiko's golden era. The Fixed bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-e1f059d37a81]

Also known as: Tuna, Sportsmatic

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
35mm
Case Thickness
10.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1980

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