Seiko Cal. 6640 - 542

Seiko 6640-542

This Hand-Winding model from 1966 features a 46mm Gold-Plated case. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-632b8c788f92]

Also known as: Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
46mm
Case Thickness
12.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
60m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1966

Related Models

seikata-wm-632b8c788f92