Strap for Black Bay GMT S&G / Black / Fabric

The lug width of the Tudor Black Bay GMT 79833MN-0004 is 22mm. This measurement is determined by the internal distance between the lugs on the case and is essential for selecting a compatible strap. To verify it correctly, remove the original strap and measure the internal distance with a digital calliper: it must be exactly 22mm.

For the bicolour version in stainless steel and yellow gold, we recommend an alligator strap in deep cognac or an Italian vegetable-tanned calf leather that enhances the warmth of the yellow gold. Alternatively, a shell cordovan in burgundy develops extraordinary luminosity after weeks of wear. For more sporting contexts, a black satin-finish FKM rubber strap maintains the tool watch vocation of the watch.

To change the strap, obtain a spring bar removal tool. Place the watch on a flat surface, locate the pin connecting the strap to the lug, gently insert the tool into the small lateral hole and push upwards to release the pin. Repeat for the other side. Install the new strap by reversing the procedure, ensuring the pin is fully inserted and locked.

Yes, any strap with a 22mm lug width is compatible with the Tudor Black Bay GMT 79833MN-0004. Online you will find customisable leather, rubber and textile straps ready for dispatch. The Casati Milano atelier also offers the possibility to create custom straps with personal choice of leathers, personalised stitching and an 18-month guarantee.

The durability of a leather strap depends on the quality of the tanning and frequency of use. An alligator or shell cordovan strap lasts 3-5 years with daily wear. A vegetable-tanned calf leather, more absorbent, lasts 2-3 years. Durability increases significantly if you wear the watch occasionally or store it correctly. Straps made by Casati Milano benefit from an 18-month guarantee and can be replaced if they show manufacturing defects.