Strap for 1832 Automatic 40 Stainless Steel / Black

The lug width of the Longines 1832 L4.825.4.52.0 is 20mm. This measurement is the distance between the inner edges of the two lugs on the case. To verify it, position a ruler or digital calliper between the end of one lug and the other, measuring the internal space. This measurement is essential for selecting the correct strap, as a strap with a non-matching lug width will have lateral play or fail to fit the case.

The most suitable strap depends on the intended use. For formal contexts, we recommend dark brown alligator or burgundy shell cordovan, both vegetable-tanned, which evolve naturally over time. For versatile daily wear, Taurillon calf in black, navy blue or grey offers a finer grain and simplified maintenance. In summer, a cotton NATO strap or structured FKM rubber guarantees breathability. All these materials are compatible with the 20mm lug width. Our Milan craftsmen can also create custom straps tailored to your specific requirements.

To change the strap, proceed as follows: position the watch on a soft surface with the case facing upward. Using a spring bar tool (a specific tool for lug pins), insert the tip into the groove on the lug pin, releasing tension. The pin will slide to one side, allowing you to remove the old strap. Repeat the operation on the other side. To install the new strap, align the strap holes with the lug pins and use the spring bar tool again to compress the pin, inserting it fully into the lug. Ensure the strap is securely fastened before wearing the watch.

Yes, the Longines 1832 L4.825.4.52.0 is fully compatible with third-party straps, provided they are manufactured with a 20mm lug width. Many specialist producers offer straps in various materials (alligator, shell cordovan, calf, rubber, NATO) dimensioned specifically for this measurement. The important thing is always to verify that the strap is labelled as "20mm" and has holes for standard lug pins. Aftermarket straps often offer greater variety in colours and finishes compared to the original Longines supply.

The lifespan of a leather strap varies depending on the material, usage and maintenance. An alligator or shell cordovan strap with vegetable tanning can last 5-10 years of daily wear, developing a desirable patina over time. Taurillon calf has a similar lifespan, 4-8 years, but requires more frequent cleaning. FKM rubber straps typically last 3-5 years before beginning to show signs of wear. Cotton NATO straps last 2-4 years if worn with moderate frequency. Factors such as humidity, sun exposure and air-drying (without artificial heat) significantly influence longevity. Proper storage and periodic maintenance can extend the life of the strap.