Documents
Oyster case
Helium escape valve
Chromalight display
Winding Crown
Cyclop lens
Cerachrom Bezel
    Skip Roller
 
    
    
    
      
      
        
          
               
 
 
    
    
    
      
      
        
          
               
 
 
        
    Cerachrom bezel edged with band of 18 ct yellow gold, with tachymetric scale
        
        Two-colour Cerachrom bezel insert of the GMT-Master II