Strap for Grantour Flyback Stainless Steel / White / Strap

The lug width of the Tudor Grantour 20551N-0006 is 22mm. This measurement is calculated by measuring the perpendicular distance between the two pins of the spring bar that anchor the strap to the case. To verify correctly, use a digital calliper and position it between the internal metal rings. A 22mm strap will fit perfectly, whereas different measurements (20mm or 24mm) would not be compatible.

The Tudor Grantour 20551N-0006 works excellently with several strap materials. For formal occasions, Nile alligator with fine grain delivers solemnity to the chronograph. For sophisticated daily wear, Italian vegetable-tanned calf develops a fascinating patina over time. For active pursuits, shell cordovan offers unmatched density and colour depth. For maximum versatility, vulcanised rubber straps protect your primary strap during intense use.

Strap replacement is a straightforward operation. Place the watch on a soft surface with the case back facing upwards. Locate the spring bar pins (the metal rings passing through the lugs). Using a dedicated tool (pin remover or small lever), gently push the pin to release the spring bar tension. The pin will slide out effortlessly. Repeat on the opposite lug. Your old strap is now free. To install the new strap, align the lug holes with the strap ends, then reinsert the pins until you feel the spring bar lock click into place.

Yes, the Tudor Grantour 20551N-0006 is fully compatible with any 22mm aftermarket strap. The standardisation of lug width guarantees universal interchangeability. However, verify the technical specifications of your chosen strap, particularly the maximum leather thickness in the lug insertion zone, as some particularly rigid straps may require initial break-in. Straps crafted from vegetable tanning, alligator, and shell cordovan are all compatible with this model.

Leather strap lifespan depends on usage intensity and material selection. A quality vegetable-tanned calf strap, rotated with at least one alternative strap, typically lasts 3-5 years. Alligator, due to its cellular density, easily reaches 5-7 years. Shell cordovan, when rotated regularly to prevent radial cracking, can last 7-10 years. Vulcanised rubber straps typically offer 4-6 years before elasticity diminishes. To maximise longevity, avoid prolonged direct sunlight exposure, excessive humidity, and extreme temperature swings. Rotating between at least two straps significantly extends useful life.