Seiko Cal. 3820 - 522

Seiko 3820-522

This Hand-Winding model from 1979 features a 40mm Hardlex-Coated Steel case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-642c284d5ce1]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Black
Jewels
24j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1979

Related Models

seikata-wm-642c284d5ce1