Seiko Cal. 6640 - 820

Seiko 6640-820

This Solar model from 1969 features a 38mm Titanium case. With its 22mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-128bbdfe5576]

Also known as: Turtle, Panda

Specifications

Movement
Solar
Case Material
Titanium
Case Width
38mm
Case Thickness
13.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Silver
Jewels
26j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1969

Related Models

seikata-wm-128bbdfe5576