Strap for Big Crown Original Pointer Date 40 Stainless Steel / Black

The Oris Big Crown reference 01 754 7696 4064-07 5 20 51 features a lug width of 20 millimetres. This measurement represents the distance between the two lugs that hold the strap to the case. It is essential to verify this dimension before purchasing an aftermarket strap, as an incompatible width would result in lateral play or incorrect tension.

The choice depends on your intended use. Alligator leather with vegetable tanning in cognac tones enhances sartorial elegance and develops a natural patina over time. NATO webbing in 350 denier nylon amplifies the sportive-aviation DNA. Gummed calf offers versatility between formal and casual contexts. FKM rubber is the tactical choice for aquatic environments or intense perspiration.

Strap removal requires a specific tool called a spring bar tool or lug pin remover. Place the watch on a non-slip cloth, locate the lug pins (small cylinders running through the lugs), gently press the pin inward with the lever whilst simultaneously levering the lug outward to extract it. Repeat on both sides. Installation of the new strap follows the reverse procedure.

Any strap with a lug width of exactly 20 millimetres is compatible with the Oris Big Crown 01 754 7696 4064-07 5 20 51. Milano Straps offers a curated selection of artisanal straps in leather, alligator, NATO, and FKM rubber in the 20mm size, crafted with meticulous attention to detail and customisable online.

Leather strap longevity depends on the tanning method and intensity of use. Vegetable-tanned leather (such as alligator) resists 2-4 years under daily intensive wear, developing an appreciable patina. Gummed calf guarantees 3-5 years. FKM rubber exceeds 5 years without visible deterioration. Regular maintenance—cleaning, drying, and occasional conditioning—significantly extends strap lifespan.