Reboot your retro style with a timepiece take on the Casio Mini, the trailblazing Casio calculator.

The long-selling calculator watch from Casio, the CA-53, pays homage to the Casio Mini, the world’s first personal calculator, featuring the original colors and design of this legendary, groundbreaking calculator.

• Case size (L× W× H): 43.2 × 34.4 × 8.2 mm
• Weight: 25 g
• Case and bezel material: Resin
• Band: Bio-based resin band
• Water resistance: Water Resistant
• Power supply and battery life: Approx. battery life: 5 years on CR2016
• Glass: Resin Glass
• Compatible band size: 125 to 180 mm
  
• Dual time
• Stopwatch
• Daily alarm/Hourly time signal
• Calendar
• Mute feature: Button operation tone on/off
• Accuracy: ±15 seconds per month
• 8-digit calculator
• 12/24-hour format
• Regular timekeeping: Hour, minute, second, am/pm, year, month, date, day