The price is affordable, and above all, it's cute (●´∀｀●) It's also loved by many celebrities, including Masato, aiko, Rinka, and model Maimi Okawa. The movement is made by a subsidiary of the Japanese watchmaker SEIKO, so the quality is top-notch!! Drive system: Quartz Material: Case: Alloy Material: Belt: Stainless steel (spring bar type) Windshield: Mineral glass Size (length x width x thickness): Approximately 43 x 37 x 9mm Belt width: Approximately 16-19mm Belt wrist circumference: Maximum approximately 20.5cm Specifications: Non-waterproof