Seiko Cal. 6643 - 821

Seiko 6643-821

This Quartz model from 1966 features a 41mm Two-Tone case. With its 20mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-b30dc9e81355]

Also known as: Bellmatic

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
41mm
Case Thickness
10.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
120m
Dial Color
Champagne
Jewels
30j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1966

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seikata-wm-b30dc9e81355