The Casio CA506B-1A is a digital watch featuring an 8-digit calculator. It is water-resistant and has an approximate battery life of 5 years on a CR2016 battery.

• 8-digit calculator
• Water Resistant
• Approx. battery life: 5 years on CR2016
• Stopwatch
• Daily alarm
• Auto-calendar
• Fabrication: Resin, Stainless Steel Band, Adjustable Clasp