You can match this band with any stainless steel Apple Watch case (Series 6 or previous versions). The 40 mm band works with the 38 mm or 40 mm cases; the 44 mm band works with the 42 mm and 44 mm cases.
Single tour band in Navy Swift calfskin
Band made in France
Band: Wrist circumference from 5.5″ to 6.9″