Marathon Adanac 3000 Digital Stopwatch Timer Black. It is laser tuned for 1/100th second accuracy. This stopwatch times 1/100th second for 30 minutes then 1 second increments up to 24 hours. It can time single and split events with split-mode timing to freeze the split-time display while total timing continues. It also features time and calendar with alarm. There are separate start-stop and reset buttons it is durable compact and easy to use. LARGE DISPLAY - Displays minutes seconds and 1/100th seconds. SPLIT MODE - Times single and split events. Freeze split-time display while total timing continues. TIME and CALENDAR - Displays hour minute second month day and date with alarm feature. LASER TUNED - Laser tuning ensures 1/100th second accuracy. Includes 46 inch black lanyard (neck strap). Package Contents: Marathon Adanac 3000 Digital Stopwatch Timer Marathon ST083000-BK: Adanac 3000 Digital Stopwatch Timer Black