The Casio CA-53 calculator watch is a modern homage to the groundbreaking 1972 Casio Mini, the first personal calculator. It captures the retro aesthetic of the original with its distinctive calculator-style keypad and a green negative LCD display, complemented by a red mode indicator. This timepiece offers practical functions including a calculator, dual time, stopwatch, and alarm.

• Calculator function
• Dual time
• Stopwatch
• Alarm
• Green negative LCD display
• Red mode indicator
• Calculator-style keypad
• Eco-friendly bio-based resin band