Longines · Conquest Classic
Strap for Conquest Classic Automatic 29.5 Red Gold / Diamond / MOP
Takes 15 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Conquest Classic L2.285.9.87.3 (aka: L22859873), seen from the bench
Frequently asked questions
What is the lug width of the Longines Conquest Classic L2.285.9.87.3?
The lug width of the Longines Conquest Classic L2.285.9.87.3 is 15mm. This measurement refers to the internal distance between the two lugs on the case and determines compatibility with straps. It is a precise dimension that does not allow approximations: 15mm straps represent the manufacturing standard for this ladies' model.
What is the best strap for the Longines Conquest Classic L2.285.9.87.3 in rose gold?
For the Longines Conquest Classic L2.285.9.87.3 in red gold, medium brown alligator represents the finest choice, creating aesthetic continuity with the precious case. For intensive daily wear, European calf box offers compactness and extended durability. Premium shell cordovan develops personalised patina over time, synchronising with the red gold's tonal evolution.
How do you change the strap on the Longines Conquest Classic L2.285.9.87.3?
Changing the strap on the L2.285.9.87.3 requires a specific tool (strap remover or spring bar tool) to extract the elastic pins (spring bars) that connect the lugs to the case. Insert the tool tip into the access hole, gently push inward to compress the spring, extract the old strap and insert the new one. This operation, though apparently simple, requires precision to avoid damaging the lugs.
Are aftermarket straps compatible with the Longines Conquest Classic L2.285.9.87.3?
Yes, any strap with a lug width of 15mm is compatible with the Longines Conquest Classic L2.285.9.87.3. Quality aftermarket straps guarantee constructive compatibility and allow for colour and material personalisation. It is important to verify that the strap's elastic pins (spring bars) are standard diameter (1.5-1.6mm) for correct insertion.
What is the lifespan of a leather strap for the Longines Conquest Classic L2.285.9.87.3?
A leather strap for the L2.285.9.87.3 has an average lifespan of 18-36 months under moderate daily-wear conditions, with variables determined by material quality, frequency of wear and humidity exposure. Premium alligator and shell cordovan develop more resistant patina and can exceed 5 years. European calf box maintains elasticity for 24-36 months. Natural leather wears according to use; aesthetic ageing does not necessarily coincide with functional exhaustion.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
