Tressa laser beam mechanical watch

tressa laser beam manual hand winding watch.
not a single problem.
very good inertia force startup.


brand : tressa
model : laser beam
sweep second
caliber number : as st 1950/51
winding system : manual hand winding
number of jewel : 17
frequency : 21600 bph
bracelet : genuine leather straps
material : stainless steel
power reserve : (42+) hour tested
county of origin : Switzerland
manufacturing year : 1965-1970


full fresh condition , not a single problem.
real picture uploaded .
home delivery available.