Seiko Cal. 5640 - 448

Seiko 5640-448

This Quartz model from 1965 features a 44mm Gold-Plated case. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-dbca3a2274d9]

Also known as: Crown, Flighty

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
11.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Champagne
Jewels
22j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1965

Related Models

seikata-wm-dbca3a2274d9