Seiko Cal. 4577 - 236

Seiko 4577-236

This Automatic model from 1990 features a 44mm Hardlex-Coated Steel case. With its 19mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-1b00a3d68b4b]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
10.2mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Silver
Jewels
22j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1990

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