14ct Yellow Gold 1.2 Carat Champagne Australian Diamond Studs with Screwback Half Off battery life: 10 years on

14ct Yellow Gold 1.2 Carat Champagne Australian Diamond Studs with Screwback Half Off battery life: 10 years on battery life: 10 years on CR2025 Resin Glass Spherical Glass World time: Multi Time (4 different cities) World time: 31 time zones (48 cities + coordinated universal time) 1 minute increments and 1 hour increments) * Other: Auto repeat Light: * Electro luminescent backlight * Afterglow Calendar: Full auto calendar (to year 2099) Stopwatch: * 1 100 second stopwatch * Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) * Measuring unit: 1 100 second (for the first 60 minutes) 1 second (after 60 minutes) * Measuring modes: Elapsed time