Features: case/bezel material: resin resin strap quartz movement mineral crystal digital display electro-luminescent backlight shock resistant flash alert 1/100 second stopwatch countdown timer multi-function alarm hourly time signal full auto calendar (to year 2039) 12/24 hour display accuracy: ±15 seconds per month day and date display solid case back buckle clasp 200m water resistance approximate size of case: 48.9 × 45.4 × 13.4mm