Longines · Presence
Strap for Presence 25.5 Automatic Stainless Steel / White / Bracelet
Takes 13 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Presence L4.321.4.12.6 (aka: L43214126), seen from the bench
Frequently asked questions
What is the lug width of the Longines Presence L4.321.4.12.6?
The lug width of the Longines Présence L4.321.4.12.6 is 13mm. This is a non-standard dimension, so compatibility verification is essential before purchasing a strap. You can measure the distance between the lug shoulders yourself using a digital calliper or millimetre ruler.
Which strap is best suited for the Longines Presence L4.321.4.12.6?
For this 25.5mm model, a strap in black or cognac brown alligator represents the finest choice, as it amplifies the formal rigour of the case without competing visually. Vegetable-tanned calf, woven fabric NATO and fluoroelastomer rubber are also valid options, depending on intended daily or formal use.
How do you change the strap on the Longines Presence L4.321.4.12.6?
To change the strap, use a dedicated spring bar tool to disengage the lugs from the case lug slots. Position the tool under the spring, apply gentle pressure and slide the strap outward. Insert the new strap by aligning it with the lug shoulders and press until the spring bar clicks into place.
Does the Longines Presence L4.321.4.12.6 accept quality aftermarket straps?
Yes, the Longines Presence L4.321.4.12.6 is fully compatible with quality artisanal aftermarket straps. The only constraint is the 13mm lug width. Milanostraps offers customisable straps in fine leather (alligator, calf, shell cordovan) and various finishes, all handcrafted by specialist artisans.
How long does a leather strap last on the Longines Presence L4.321.4.12.6?
Durability depends on the leather type and usage. An alligator or vegetable-tanned shell cordovan strap can last 3-5 years or more with regular maintenance (occasional cleaning, prompt drying after moisture). Calf offers similar longevity. Fluoroelastomer rubber offers superior resistance in humid environments. Casati Milano guarantees 18 months on all artisanal-produced straps.
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
