Strap for Heritage Black Bay Black Chronograph / Strap

The lug width of the Tudor Black Bay Chronograph 79350-0002 is 22 millimetres. This measurement represents the internal distance between the two metal lugs on the case and determines the maximum width of the strap you can mount comfortably. Measure between the attachments to verify compatibility: it must be exactly 22 millimetres.

For the Black Bay Chronograph 79350-0002, we recommend straps in alligator leather with vegetable tanning (dark brown or black) for aesthetic coherence with the military design, or shell cordovan for elegant contrast. For sports use, a vulcanised rubber NATO strap offers water resistance and durability. Avoid excessively thick straps as the 22mm lug width does not tolerate excessive volume.

Remove the watch from your wrist. Using a dedicated tool (spring bar tool), extract the elastic pin that connects the strap to the lugs. By pushing the pin laterally, release the tension and slide the strap outwards. Repeat on the other side. To mount the new 22mm strap, reinsert the elastic pin into the new lug and, using the tool, reposition the pin in the case attachments until you hear the click.

Yes, the 79350-0002 is fully compatible with third-party 22-millimetre straps. Ensure that the strap is constructed for 22mm lug width and that the spring bars are the same size. Custom-made straps of artisanal quality, such as those created by Casati Milano, guarantee superior construction tolerances and finishes compared to generic straps.

The lifespan of a leather strap depends on the material and usage. A high-quality alligator or shell cordovan strap lasts 3–5 years under normal wear conditions. Vegetable-tanned leather ages naturally, developing organic patina that adds aesthetic character. Prolonged exposure to water, sun, and perspiration accelerates wear. Vulcanised rubber straps have longer lifespan (5–8 years) as they resist moisture and require no conservative maintenance.