Seiko Cal. 4428 - 646

Seiko 4428-646

The 4428-646 is a sought-after Kinetic piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 150m of water resistance. [seikata-wm-815279cd10ca]

Also known as: Shogun, Tuna

Specifications

Movement
Kinetic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
14.7mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
150m
Dial Color
Silver
Jewels
27j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1965

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seikata-wm-815279cd10ca