Features: resin case resin strap quartz movement mineral crystal black dial analog digital display step tracker neobrite shock resistant double led light mobile link 1/100 second stopwatch 5 daily alarms hourly time signal full auto calendar g-shock connected app 12/24 hours display day and date display accuracy: ±15 seconds per month screwed case back buckle clasp 200m water resistance approximate case diameter: 45mm approximate case thickness: 15mm