The Cartier Ronde has been under the radar for a long time, including lately. The reference 1800 is very good looking and is a good reminiscence of Cartier's watchmaking origins. The watch is in very good condition and works well. 
 
*** The pictures may show the reflection of the camera lens, black spots mostly ***

Details: Cartier
Model:  Must de Cartier
Reference: 1800
Year: 1980's
Material: Vermeil
Dimensions: 33mm
Crystal: Mineral Glass
Movement: Quartz
Bracelet/Strap: Original band and buckle 
Box/Papers: No/No