21mm Watch Straps

Finding a well-made 21mm watch strap can take a little more searching than other lug widths. We've brought together leather, textile and military G10-style straps from trusted makers including Hirsch, Fluco and Erika's Originals, giving you quality options designed specifically for this less common size.

Not sure what fits your watch? Use our Strap Finder to find the correct width and compatible straps by watch brand and model.
77 products
Artem Nylon Military G10 Watch Strap Blue Bond - Holben's
Artem Nylon Military G10 Watch Strap Blue Bond - Holben's
Artem Nylon Military Watch Strap - Blue Bond
Price
$76
Artem Nylon Military G10 Watch Strap Atlantic - Holben's
Artem Nylon Military G10 Watch Strap Atlantic - Holben's
Artem Nylon Military Watch Strap - Atlantic
Price
$76
Artem Nylon Military G10 Watch Strap - Black and Orange Stripe
Artem Nylon Military G10 Watch Strap - Black and Orange Stripe
Artem Nylon Military Watch Strap - Black and Orange Stripe
Price
$76
Artem Nylon Military G10 Watch Strap Burgundy - Holben's
Artem Nylon Military G10 Watch Strap Burgundy - Holben's
Artem Nylon Military Watch Strap - Burgundy
Price
$76
Mystery Strap Artem Loop-Less - Holben's
Mystery Strap Sailcloth - Artem Loop-Less
Retail $133+
Price
$99