"We kindly inform you that material code "BA" for the timepieces in 18-carat yellow gold has no meaning.

Should you require any further information, please feel free to contact us at your convenience.

Kind regards,

Carlos
Audemars Piguet Client Care


Please find below more information regarding the product codifications.

XXXXXAA.AA.AXXXX.XX

XXXXX: model number
AA: material code
AA: Finishing and Gem-settings coding
A: clasp coding
XXXX:coding of materials for leather and fabric straps
XX: dial color coding"

Gruss,

Guy