Yema - Sous Marine Champagne - 1970's

Technical specifications :
brand : Yema
year :1970's
movement: manual 
function: date, second hand
case material: steel 
case back material: steel
case dimensions excluding crown: 39mm
case dimensions with crown: 40.2mm
dimensions horn to horn: 41.2mm
thickness (crystal included): 10.7mm
dimensions between lugs: 18mm
bracelet: not original 
buckle: not original
crown: not original
crystal plexiglass (condition: 9/10)
waterproof: no
box : no
paper : no
document : professional invoice