Seiko Cal. 4428 - 517

Seiko 4428-517

The 4428-517 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-8b7eb4af4296]

Also known as: Bullhead

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
41mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Green
Jewels
30j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1976

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