Seiko Cal. 4561 - 818

Seiko 4561-818

This Hand-Winding model from 1981 features a 36mm Hardlex-Coated Steel case. With its 22mm lug width and 13.5mm profile, it sits comfortably on most wrists. [seikata-wm-b57f884abf04]

Also known as: Helmet

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Black
Jewels
22j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1981

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