WatchesAtlas / Watch knowledgeThe Watch EncyclopediaUnderstand the details that make a watch.Explore watches ↗Find a term or abbreviationCategoryAll categoriesMovements & mechanismsComplications & displaysCases, dials & braceletsFinishing & craftsmanshipPerformance & measurementModern watch technologyCollecting, condition & careSearchAllABCDEFGHIJKLMNOPQRSTUVWXYZ2 termsClear filtersComplications & displaysBarometerA function measuring atmospheric pressure, sometimes used to indicate changes in weather conditions.↗Complications & displaysBig dateAn enlarged date display, often using separate components for the tens and units digits.↗