Cool set!
The strap is made of khaki elephant leather. An interesting lining "vintage-calf-swamp". Thread in the color of the watch case.
Steel buckle with a "plate" on the screws. On the plate, at the request of the client, 3 digits are engraved - this is the date of birth of the spouse, daughter and the customer himself.
I produce cool buckles for watches, decorative inserts in straps and metal keepers. My site: https://straps-buckles.com