TAG Heuer's Solar Watch Runs for 10 Months Without Charging

TAG Heuer has unveiled a solar-powered watch that works for up to 10 months on a single charge, even in dim light. The Formula 1 Solargraph uses solar cells built into its face to power a quartz movement. Analysis: This far exceeds typical smartwatches, which need charging weekly or daily. It shows real progress in capturing sunlight efficiently and managing power use—achievements that could reshape how long consumers expect their wearables to last.