Brand name AUDEMARS PIGUET (Audemars Piguet). Model number/part number 56271ST. Year of manufacture. Material Case: Stainless steel. Windshield: Sapphire crystal windshield. Size boys Case width about 30mm. Approximately 16.5 cm around the arm (short size adjustable). Condition: Scratches can be seen on the bezel. Although there are scratches on the whole, it is in good condition. Other features Date display. Depending on the country of destination, your orders typically take between a week to arrive. To Asia about 6-9 days, To Europe about 7-12 days. Weekends are not available because post office is closed. Thank you for your understanding.