From Tissot, the T-Touch Connect Solar Watch features: Round antimagnetic titanium case Tactile scratch-resistant sapphire crystal dial Titanium strap Folding clasp with push-button closure Swiss-made connected quartz solar tactile movement Case size approx. 47.5mm  Water-resistant up to 100M Imported.  Tissot uses the greenest of energy sources to power its iconic T-Touch collection: Expert Solar and Connect Solar. Tiny solar sensors located on the watch dial capture light that is stored in an accumulator. The energy needed to run the quartz usually comes from a battery, but here the energy comes from natural or artificial light. This sustainable technology is enabling Tissot to create watches that run for several months without ever needing a recharge.