Seiko Cal. 4429 - 644

Seiko 4429-644

The 4429-644 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-b1c38f3165b5]

Also known as: Sportsmatic

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
40mm
Case Thickness
15.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
50m
Dial Color
Blue Sunburst
Jewels
18j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1970

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