Seiko Cal. 0720 - 423

Seiko 0720-423

This Automatic model from 1969 features a 44mm Hardlex-Coated Steel case. With its 22mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-e9d847dadb4a]

Also known as: Sumo, Bellmatic

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
8.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Silver
Jewels
32j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1969

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