Seiko Cal. 4418 - 647

Seiko 4418-647

This Spring Drive model from 1983 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-570a88bce0c8]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
10.7mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Champagne
Jewels
24j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1983

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