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. If you're unsure whether your watch requires a 21mm strap, see our Watch Strap Sizing Guide.

83 products
Artem Loop-Less HydroFlex Blood Moon Red Sailcloth Watch Strap | Holben's
Artem Loop-Less HydroFlex Blood Moon Red Sailcloth Watch Strap | Holben's
Artem Loop-Less HydroFlex Sailcloth Watch Strap - Blood Moon
Price
$248
Artem Nylon Military G10 Watch Strap Vintage Bond - Holben's
Artem Nylon Military G10 Watch Strap Vintage Bond - Holben's
Artem Nylon Military G10 Watch Strap - Vintage Bond
Price
$76
Artem Nylon Military G10 Watch Strap Atlantic - Holben's
Artem Nylon Military G10 Watch Strap Atlantic - Holben's
Artem Nylon Military G10 Watch Strap - Atlantic
Price
$76
Artem Nylon Military G10 Watch Strap Blue - Holben's
Artem Nylon Military G10 Watch Strap Blue - Holben's
Artem Nylon Military G10 Watch Strap - Blue
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 G10 Watch Strap - Black and Orange Stripe
Price
$76
Artem Military G10 Nylon Watch Strap Black - Holben's
Artem Military G10 Nylon Watch Strap Black - Holben's
Artem Nylon Military G10 Watch Strap - Black
Price
$76
Artem Nylon Military G10 Watch Strap Bond - Holben's
Artem Nylon Military G10 Watch Strap Bond - Holben's
Artem Nylon Military G10 Watch Strap - Bond
Price
$76
Artem Nylon Military G10 Watch Strap Burgundy - Holben's
Artem Nylon Military G10 Watch Strap Burgundy - Holben's
Artem Nylon Military G10 Watch Strap - Burgundy
Price
$76
Artem Nylon Military G10 Watch Strap Grey - Holben's
Artem Nylon Military G10 Watch Strap Grey - Holben's
Artem Nylon Military G10 Watch Strap - Grey
Price
$76
Artem Nylon Military G10 Watch Strap Blue Bond - Holben's
Artem Nylon Military G10 Watch Strap Blue Bond - Holben's
Artem Nylon Military G10 Watch Strap - Blue Bond
Price
$76
New
Mystery Strap Artem Loop-Less - Holben's
Mystery Strap Sailcloth - Artem Loop-Less
Retail $133+
Price
$99