Seiko Cal. 6663 - 720

Seiko 6663-720

This Quartz model from 1966 features a 46mm PVD Black case. With its 20mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-fc4278e0d9d8]

Also known as: Helmet, Silverwave

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
46mm
Case Thickness
11.9mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
30m
Dial Color
Cream
Jewels
19j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1966

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