Longines
Conquest L3.430.5.72.9— lug 17mm
Longines Conquest L3.430.5.72.9: 17mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 17mm lug width to preserve the original sartorial balance."
Technical Specifications
Longines L3.430.5.72.9The essential strap measurement.
Browse 17mm straps →L3.430.5.72.9
Longines caliber L888.5 Hours, Minutes, Seconds | Date | Chronometer
The Heritage
FAQ
What is the lug width of the Longines Conquest L3.430.5.72.9?
The Longines Conquest L3.430.5.72.9 features a lug width of 17 millimetres. This specification is particular to this model and is essential when selecting a strap: a 17mm strap inserts flawlessly into the case lugs, ensuring stability without axial play. Alternative widths (16mm or 18mm) would prove incompatible or forced.
Which strap is most recommended for this two-tone Longines?
Given the two-tone character (rose gold and steel), we recommend a cognac alligator or light brown vegetable-tanned calf leather. Alligator enhances the luxury of rose gold, whilst vegetable-tanned calf achieves perfect balance with stainless steel. A navy blue or charcoal NATO offers instead maximum everyday versatility.
How do I change the strap on the Longines Conquest L3.430.5.72.9?
Strap replacement requires a dedicated spring bar tool to remove the lugs. Position the watch on a soft cushion, gently press the internal spring of one lug until the lug post is freed, extract the old strap and insert the new one by aligning the lugs with the holes. No watchmaker visit is necessary, though light cleaning of the case around the lugs after removal is advisable.
Is an aftermarket strap compatible with this Longines?
Yes, provided it is constructed for the 17mm lug width. Milanostraps offers an extensive range of 17mm straps customisable in leather, material and colour. It is crucial to verify that the strap has been specifically engineered for this width, as variations of ±0.5mm may compromise its fit.
How long does a leather strap last on this watch with daily wear?
A quality leather strap (alligator or vegetable-tanned calf) has an average lifespan of 4–6 years with daily use and routine maintenance (periodic cleaning, protection from excessive water and perspiration). Longevity depends on sun exposure, humidity and frequency of wear. Metal components—buckle and deployant—have superior durability. Casati Milano straps include an 18-month warranty against manufacturing defects.