The Bonetto Cinturini Ref. 317 Black Heavy Duty Rubber Strap are Made In Italy using natural rubber. What this means is that they are strong, supple and water resistant.
And because they are using natural rubber means they are not attracted to dust and particles (read: not lint magnet) as compared to lower quality silicon straps found outside.
The Ref. 317 Black Heavy Duty Rubber Strap is a classic style rubber strap which is 5mm thick and tapers to 4mm at the ends. Suits sports and diving watches perfectly.
Made in Italy
Material: Genuine Italian Rubber
Available in Black, Midnight Blue, Orange.
Sizes: 22mm, 24mm
Buckle width: 20mm, 22mm
Length: 75/135mm excluding buckle
Length to smallest hole: 50mm
Thickness: 5mm tapering to 4mm