Watchismo says this is its biggest Swiss watch sale ever: 40 percent off select Tendence Watches for a limited time. Apply coupon code TENDENCE40 at checkout to redeem. A blend of form and function, the Tendence collection is a highly evolved concept, with extreme dimensions and three-dimensional digits carved to stand high above the concave dial, itself cut from stainless steel, polycarbonate or titanium. This coupon code expires very soon!