CASIO Digital Watch Vintage Series Reproduction Design A1100D-1 Unisex Silver Overseas Model This is the "A1100" series, a modern reproduction of the "52QS-14B" released in the 1970s. While maintaining the design of the original model, the details have been brushed up. To enhance the metallic design concept, metal parts are used for the case, buttons, and band. [Main Watch Functions] Stopwatch (measuring unit: 1/10 second, measuring range: 59 minutes 59.9 seconds (60-minute timer)) Time alarm, hourly signal Auto-calendar LED light Accuracy: Average monthly difference of 30 seconds Battery life: Approximately 3 years Purchased new. Beautiful condition, only tried on. Spare links included. Adjusted to a wrist size of 17cm at the time of purchase from the online shop. Thank you for your consideration.