• 8-Digit Calculator
  Constants for addition, subtraction, multiplication and division
• Water Resistant
• Dual Time
• Daily Alarm
• Hourly Time Signal 
• Auto Calendar
  
• Battery CR2016
• Approx. battery life: 5 years
• Module 437

Size of case/total weight
42.0 x 33.0 x 7.0mm / 29g