Thank you for viewing. I am selling a Hamilton Khaki Aviation. I purchased this watch used in 2024, but I am selling it because I haven't been using it much. The main specifications are as follows: Product number: H764190 Caliber: H-50 Movement: Mechanical, manual winding Case size: 36mm x 33mm Thickness (mm): 9.95 Dial color: Black Case material: Stainless steel Lug width: 18mm Included with the watch are the original box, instruction manual, warranty card, and tag, as well as an olive NATO strap that I received from the previous owner. I have been using the watch with a different strap, so the original brown leather strap is unused. The condition of the olive NATO strap is unknown. In terms of actual use, the accuracy is approximately +9 to +10 seconds per day when laid flat, and the power reserve felt to be around 45 hours based on my measurements. I would appreciate it if you could judge the condition of the product from the photos, but in my subjective opinion, there are no major scratches or stains. It is easy to use because it is thin and light due to the manual winding, and it has a simple three-hand design without a date function. Unless there is a major defect such as the watch not running, I generally cannot accept returns. Thank you for your consideration.