Strap for BelleArti 19 Quartz Stainless Steel Diamond MOP

The lug width (or lug width measurement) of the Longines Heritage L2.194.0.83.6 is 12 millimetres. This measurement represents the internal distance between the two spring bars of the case. It is a specific dimension and not interchangeable with common standards such as 18mm, 20mm, or 22mm. To verify this measurement accurately, use a digital calliper to measure the internal distance between the lug pins.

For this compact 19mm timepiece, an alligator leather strap in cognac tone with medium thickness offers the finest aesthetic balance. Genuine alligator delivers elegance without burdening the wrist, and its warm hue contrasts beautifully with the silver dial. Alternatively, vegetable-tanned calf leather in bordeaux tones develops an aged patina of considerable character over time.

Strap replacement requires a dedicated tool: a spring bar tool (or ansa spoon) or a small lever-based pincer. Position the watch on a soft surface, locate the spring bar retention pin (typically a screw or elastic pin), use the tool to gently lift the pin from the lug slot, extract the worn strap, and insert the new one. If you lack experience, entrust the task to an authorised Longines service centre or to Casati Milano atelier.

Yes, absolutely. Quality aftermarket straps that respect the 12mm lug width measurement are entirely compatible. On milanostraps.it you will find a curated selection of 12mm straps crafted in genuine leather, woven cotton, and rubber, built to the same standards as OEM examples. Customisation options—including lengths, initials, and stitching type—ensure a perfect fit to your wrist.

The durability of a leather strap depends on material quality, frequency of wear, and maintenance practices. A premium alligator strap typically lasts 4–6 years with regular use (3–4 times weekly) before showing signs of fibre breakdown. Vegetable-tanned calf resists for 3–5 years. A pressed rubber strap can last 5–7 years. To extend lifespan, avoid prolonged moisture exposure, store in a dry environment, and rotate multiple straps on the same watch to distribute wear evenly.