Swatch Antifreeze  -  SHK100C

Inside the watch is a ski pass function that will allow you to conquer the ski slopes of all the world.
- Contactless RFID* chip EM Marin, 125 kHz, P4150 V2 f/40
- Read and write memory
- Up to 4 independent applications on the chip (fire-walled)
- Data encryption
- Chip works independently from the watch battery
- Unique ID number for each watch, laser programmed and cannot be altered.
For visual checks, the ID number is engraved on the watch case bottom.