Seiko Cal. 4423 - 337

Seiko 4423-337

This Automatic model from 1989 features a 41mm PVD Black case. With its 21mm lug width and 8.1mm profile, it sits comfortably on most wrists. [seikata-wm-f97a2f3bcecd]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
41mm
Case Thickness
8.1mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Green
Jewels
33j
Frequency
21,600 bph
Power Reserve
64 hours
Year
1989

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