This Hamilton leather strap is made from natural materials. The leather is tanned, but has not been treated, pigmented and finished in the same way as some other leather straps. This helps it to retain its natural look and also means that every piece is not exactly the same. As a result, the color of the leather strap may differ from the color shown on the image. For more information, please contact your local authorized Hamilton retailer. CONTACT OUR SALES TEAM (905) 458-5588 FOR INFORMATION REGARDING OUR PRICE MATCH GUARANTEE H-50 The H-50 is an exclusive caliber specifically developed for our handwinding watches. The H-50 is available with or without a date function and has an extended power reserve of up to 80 hours, ensuring maximum reliability even when it is not wound for a few days. DESIGN