Cartier - Tank Must Wood Spider Dial - 1980's

Technical specifications :
brand: Cartier 
year :1980's
movement: manual 
function : none
case material: vermeil
case back material: vermeil
case dimensions excluding crown: 23.6mm
case dimensions with crown: 26.3mm
dimensions horn to horn: 30.8mm
thickness (crystal included): 8mm
distance between lugs: 17mm
bracelet: not original
buckle: probably original
crown: original blue cabochon 
crystal mineral (condition: 9/10)
water-resistant: no
box: no
paper : no
document : professional invoice