I apologize, but the purchase date is "unknown." This item was found while organizing my home, and I am listing it with the understanding that it is an antique. 〈Product Details〉 - Model Name: Naval Air Force Watch - Color: Black - Materials: Stainless steel case, leather-style band - Accessories: Original box I would love to sell this to someone who is interested, so I am happy to negotiate on the price. Please feel free to contact me!