Seiko Cal. 4428 - 642

Seiko 4428-642

The 4428-642 is a sought-after Kinetic piece from Seiko's golden era. It features a Cream dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-65f0f20ab7e4]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Cream
Jewels
21j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1975

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