Custom full-stitched Horween Essex (made in America) leather replacement strap with hidden-strap deployant clasp. Horween is a historic American tannery in Chicago, Illinois. They've been making the finest leathers since 1905.
Also compatible with:
-Xeric Trappist-1 Moonphase-Halograph II Automatic-Halograph Chrono Sapphire-Halograph Original Automatic-Xeriscope Original-Most watches with 22mm lug width