Seiko Cal. 5284 - 422

Seiko 5284-422

The 5284-422 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-3d6dfc96e230]

Also known as: Monster, Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Navy
Jewels
31j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1979

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seikata-wm-3d6dfc96e230