Strap for Tudor Black Bay Chrono 39 Bumblebee 79310N

The lug width of the Tudor Black Bay Chrono 39 Bumblebee 79310N is 20mm. This dimension is measured between the inner shoulders of the case lugs. To measure accurately, use a digital calliper positioned between the two lugs or a graduated plastic lug width gauge. Any compatible strap must feature this exact measurement to ensure seamless fitment without play or strain on the case.

The optimal strap depends on usage and personal preference. For elegance and longevity, we recommend dark brown or black alligator, which complements the chronograph's black and yellow bezel. For daily versatility, vegetable-tanned calf leather develops characteristic patina and comfort. For intensive water sports, FKM rubber delivers superior grip and durability. A charcoal grey NATO strap offers a contemporary aesthetic and swift adjustment capability.

To change the strap on the 79310N, use a spring bar removal tool to gently push the spring mechanism inward whilst extracting the strap from one lug. Repeat on the opposite lug. Ensure the new strap is positioned with correct lug orientation and verify that the spring bar sits securely on both sides. Handle with care to avoid scratching the stainless steel case.

Yes, absolutely. A high-quality aftermarket strap in alligator, calf leather or other noble materials allows full personalisation of the 79310N. Ensure the strap features a precise 20mm lug width and that the passants (keepers) are properly dimensioned for the Tudor case. Verify deployante or buckle compatibility with the case lugs to guarantee stress-free assembly.

Longevity depends on material quality and usage patterns. An alligator strap, with proper conditioning (periodic application of leather creams), can last 5-7 years or indefinitely with meticulous care. Vegetable-tanned calf typically endures 3-5 years before replacement becomes desirable. Synthetic NATO and FKM rubber straps prove more robust, lasting 7-10 years with minimal wear. Periodic replacement is nonetheless advisable to maintain wrist hygiene and preserve aesthetic freshness of your chronograph.