Strap for Museum Collection N° 1 "Pilots 1938" Aquarella Pink Sapphires

The lug width is 24mm, an unconventional measurement that characterizes this Museum Collection model. Measure it with a digital caliper positioned perpendicularly between the inner edges of the two lugs. This dimension is specific and should not be confused with the width of the strap worn on the wrist.

A vegetable-tanned black or dark brown alligator is the classic solution. For sportiness, a grey or deep blue cordura NATO strap reflects the watch's military origins. Vulcanized rubber with a stainless steel keeper is ideal for those seeking versatility and water resistance, allowing easy style changes.

Remove the current strap using a spring bar tool to free the lug pins. Insert the pins of the new 24mm strap into the housings, ensuring symmetric positioning with no gaps. If you are not experienced, consult a specialized craftsman to avoid damage to the case edges.

Yes, if your 5778.71.56 has a lug width of 24mm. Verify with a digital caliper. Many 5778 models have this opening, which characterizes this Museum Collection series. Never use 22mm or 26mm straps, as they will not fit correctly, causing unwanted movement or damage.

A well-maintained alligator or vegetable-tanned calf strap lasts an average of 4-6 years with regular wear, up to 8-10 years if worn occasionally. Vulcanized rubber can last up to 10 years. Milano Straps guarantees 18 months on the artisanal strap. Lifespan depends on sun exposure, ambient humidity, and frequency of use.