Tropic 18mm Vintage Unused item. Purchased from a reputable seller on the overseas site eBay. Although it has aged, the condition is perfect and supple. The buckle has a shaped, powerful design with "ACIER" stamped on it. Rubber straps tend to look monotonous, but this one has a carbon fiber pattern, which is a nice accent. The reference number is 22509. By attaching this rubber strap, the watch itself will also look more glamorous. I strive for courteous service. Thank you.