Dichi Watch - Chrono Landeron - 1950's

Technical specifications :
brand : Dichi Watch 
year: 1950's
movement: manual 
function: chronograph, seconds, tachometer
case material: gold-plated
case back material: steel 
case dimensions excluding crown: 37mm
case dimensions with crown: 39mm
dimensions horn to horn: 45.6mm
thickness (crystal included): 12.2mm
dimensions between lugs: 20mm
bracelet: not original 
buckle: not original
crown: not original
crystal plexiglass (condition: 8/10)
waterproof: no
box : no
paper : no
document : professional invoice