Crowned Koi
Certificate of Authentication
CK-CERT-DDFF0BA2
Brand
Rolex
Model
GMT-Master II
Reference
16710
Year
2005
Serial
D6•••••
Authenticated by
Pat at Crowned Koi
Date Issued
October 27, 2026
Verify at crownedkoi.com/authentication/ddff0ba2349a489ca96c5e7ec51f9b45

