Seiko Cal. 4577 - 313

Seiko 4577-313

The 4577-313 is a sought-after Quartz piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-71f29caccb3c]

Also known as: Helmet

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
8.8mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Silver
Jewels
17j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1984

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