Seiko Cal. 4581 - 821

Seiko 4581-821

The 4581-821 is a sought-after Automatic piece from Seiko's golden era. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-da294372f393]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
15.0mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
180m
Dial Color
Navy
Jewels
35j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1970

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seikata-wm-da294372f393