Strap for Black Bay GMT Air France

The lug width (ansa) of the Tudor Black Bay GMT 79830RB-00AF is 22 millimetres (22mm). This measurement is taken between the inner shoulders of the two lugs that attach the strap to the case. All compatible straps must respect this measurement to ensure correct and secure fitment to your watch.

For the Tudor Black Bay GMT 79830RB-00AF, vegetable-tanned leather straps are highly recommended, as they amplify the vintage aesthetic of the model. Mississippi alligator or calf leather offer durable character and develop natural patina over time. For a more sports-oriented look, NATO or technical rubber straps align perfectly with the watch's vocation as a travel instrument.

To change the strap, place your watch on a soft surface. Locate the spring bar pins at both ends of the case lugs. Using a spring bar tool (a specialized tool with a U-shaped slot), press the pin towards the centre of the case to release the internal spring, then slide out the old strap. Repeat on the opposite lug. Insert the new strap by aligning the holes at each end, then reinsert the pins ensuring the spring mechanism is correctly positioned. Verify the strap is securely fastened before wearing.

Yes, any well-made aftermarket strap in 22mm is compatible with the Tudor Black Bay GMT 79830RB-00AF, provided it respects the quality standards expected of luxury timepieces. Artisan-crafted straps in vegetable-tanned leather, alligator, or technical rubber integrate seamlessly. Ensure the strap is personalised to the correct length for your wrist to guarantee comfort and optimal visual proportions.

The lifespan of a leather strap depends on tanning quality and usage patterns. A strap crafted from vegetable-tanned leather, when properly maintained and worn with moderation, typically lasts between 3 to 5 years. Vegetable tanning, unlike chrome tanning, ages elegantly, developing a unique patina. Limit prolonged direct water exposure and clean periodically with a soft brush to extend durability.