Seiko Cal. 4428 - 623

Seiko 4428-623

This Automatic model from 1971 features a 36mm Hardlex-Coated Steel case. With its 19mm lug width and 9.9mm profile, it sits comfortably on most wrists. [seikata-wm-2ac2a15b5700]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
9.9mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Green
Jewels
31j
Frequency
36,000 bph
Power Reserve
48 hours
Year
1971

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seikata-wm-2ac2a15b5700