Seiko Cal. 4420 - 921

Seiko 4420-921

The 4420-921 is a sought-after Quartz piece from Seiko's golden era. With its 22mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-da8c3572b27e]

Also known as: Tuna

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
44mm
Case Thickness
13.1mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
57 hours
Year
1983

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