Seiko Cal. 4420 - 552

Seiko 4420-552

This Quartz model from 1973 features a 40mm Hardlex-Coated Steel case. Powered by the 4420 caliber with 19j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-65a3a605b1c5]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
12.8mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1973

Related Models

seikata-wm-65a3a605b1c5