Swiss Technology Inside Smart Sapphire

STISS was developed by Winwatch in collaboration with outstanding technology partners to perfectly feature traditional and luxury metal watches with unique contactless payment functionality.

Swiss made


Powered by a highly secure Infineon SECORA PAY™ microcontroller


Welcomed worldwide where contactless payments are accepted


Digiseq Payment Ready

No battery

Sustainable & battery-free

The sapphire glass – it’s perfect!

Sapphire is the 2nd hardest material after diamond. It is scratch resistant and therefore used in most outstanding timeless watches. Sapphire is the top choice.
The technology inside the glass

The whole payment technology is sealed inside the sapphire glass. The chip is protected by a notch and the antenna is hidden by a silver coating around the rim and the chamfer.
The design for every watch

Looks great on any analog watch dial. Moreover, the «hovering» notch clearly shows up that the watch owns that exclusive payment feature. A patented solution to circumvent the effects of the Faraday cage.

Ready for the new contactless payment experience with STISS