accessories-jaw-2
Country Code

Contry Code
They are the "national codes", indicating which country the watch was initially shipped to by Rolex Geneva.

010-Switzerland 

100-Germany

110-France 

120-Austria 

130-Belgium 

138-Netherlands 

150-Spain 

160-England 

265-Sweden 

283-Finland 

400-Hong Kong 

413-Korea 

430-Singapore 

440-Taiwan 

700-Canada 

720-Mexico 

741-Bahamas 

752-Jamaica 

768-Panama 

810-Australia 

900-Japan 

Maybe: 

527-Middle East (?) 

828-China (?