Strap for Oris Big Crown 01 754 7798 4065

The lug width is 20 mm, a historic standard of Swiss aviator watches. This measurement should be verified with a digital calliper positioned between the internal pins. The screw-on lugs simplify strap replacement without specialist tools.

The choice depends on intended use. For formal occasions, alligator or vegetable-tanned calf leather emphasises sartorial heritage. For sports or summer wear, dense NATO or FKM rubber ensures practicality and longevity. White gold case pairs superbly with alligator, whilst steel permits greater versatility.

The screw-on lugs require gentle pin extraction with consistent pressure (preferably using a spring bar tool). The replacement strap must have matching lug width (20 mm). Do not force pins during insertion; steady procedure ensures permanent stability without micro-damage to materials.

Any strap with 20 mm lug width is compatible. Milano Straps offers selections in alligator, calf, NATO and rubber specifically dimensioned for this width. Advice: always verify aesthetic coherence between chosen material and dial (black or blue) to preserve the model's historical visual balance.

An alligator or vegetable-tanned calf strap, worn in rotation (not daily), lasts 3–5 years. The natural patina evolves over time, incrementing character. NATO or rubber straps offer greater durability (5–7 years), owing to absence of stresses from seasonal hydration.