Casio Vintage A178WGA-1A

10 Year Battery
Water Resistant
LED Light with Afterglow
Dual Time
Daily Alarm
1/100 second digital stopwatch (Measuring capacity: 23:59'59.99", Measuring modes: Net time, split time, 1st-2nd place times)
Hourly Time Signal
Auto Calendar (pre-programmed until the year 2039)
Accuracy: +/-30 seconds per month, Battery CR2025, Approx. battery life: 10 years
Module 2519,
Size of case / total weight: 39.5 x 32.5 x 9.8mm / 52g