Antenna device

A timepiece comprising:

• a case formed of a metal middle part wherein are disposed a metal dial and a remote communication system provided with a multi-band antenna device arranged above said dial, the communication system comprising a bracelet of said timepiece connected at its ends to said middle part and comprising a body formed of a plurality of fastening elements having different electrical conduction properties, said antenna device comprises:
• a substrate,
• a first antenna circuit produced on said substrate and having first and second strands having a proximal end and a distal end, and extending in parallel between their proximal and distal ends, the first and second strands being connected by their proximal ends and separated at their distal ends,
• a second antenna circuit produced on said substrate and having third and fourth strands having a proximal end and a distal end, and extending in parallel between their proximal and distal ends, the third and fourth strands being connected by their distal ends and separated at their proximal ends,
• an electrical junction link joining the proximal ends of the first and third strands, and
• a connection part configured to be bent relative to said electrical junction link, and including a conductive connection connected to the electrical junction link and including an electromagnetic shielding of said conductive connection.