This is a listing for a beautiful set of a HIRSCH DUKE leather strap and a CASSIS CASSIS D-buckle (matte finish). The strap color is navy blue. I believe HIRSCH listed it as dark blue. In dark places, it's a deep navy, almost black. In bright places, it's a very beautiful navy. Currently, HIRSCH's catalog only lists blue, so I think this is a rare color. It's a very versatile color that matches any watch. The CASSIS D-buckle is matte silver, which also makes it easy to match with any watch. 《Leather Strap Crocodile Embossed HIRSCH DUKE Duke 18mm》 Retail Price: 11,000 yen (including tax) Material: Upper Leather: Calf Leather Alligator embossed (Calf leather, alligator embossed) Lining Leather: HIRSCH Softglove leather (Soft glove leather) Color: Dark Blue Size: L (Length 120mm / 80mm) 《D-buckle Silver Satin Finish (Matte) 16mm》 Retail Price: 5,500 yen (including tax) CASSIS PBF D-BUCKLE This buckle uses 316L stainless steel, which is resistant to corrosion. It's also designed to match various watches. The silver matte satin finish is a popular buckle that can be matched with any watch. The build quality is excellent, a D-buckle that's known to those in the know. I also have a shiny chrome-plated (mirror finish) one, but the matte finish is overwhelmingly better. Please judge the condition from the many photos. It's in like-new condition, having only been used a few times. The leather strap can be used with watches with a lug width of 18mm. The D-buckle can be used with straps with a buckle width of 16mm. Please be very careful about the size. The total price is less than half of the original 16,500 yen. Please consider it. I apologize, but please note that spring bars and the HIRSCH buckle are not included.