NFC (Near Field Communication) IC chip inside flat sapphire crystal, contactless transmission of data (read&write), operating distance up to 2 cm.
NXP's Mifare DESFire EV2 4K IC is NFC forum type 4 tag compliant. It is a dedicated chip for access control and ticketing, but also uses for product authentication and product information and empowers customer binding by ,customer experience' multi-applications, as well as production and supply chain management in different areas of the watch industry.
- Frequency 13.56 MHZ
- NFC, Mifare, ISO/IEC 14443 A 1–4 and ISO/IEC 7816 compliant
- NFC Tag Type 4 compliant
- EEPROM size 4 KB
- DES/2K3DES/3K3DES/AES crypto algorithms in hardware
- 10 years data retention
- 500'000 write endurance (cycles)
- Multi-Application (Unlimited applications)
Winwatch's NFC sapphire crystal is a passive device meaning that it doesn't hold a battery and it's absolutely maintenance-free.
A variety of quartz, automatic and mechanical watches can be equipped and/or retrofitted with this product.