Strap for La Grande Classique Quartz 23 Gold

The lug width (ansa width) of the Longines La Grande Classique L4.191.6.11.0 is precisely 12mm. This dimension is specific to the compact 23mm case and represents one of the rarest specifications in watchmaking. To verify it accurately, measure from the inside of one lug pin to the inside of the opposite pin using a digital calliper.

Alligator leather in warm tones (hazelnut brown, cognac) is the optimal choice due to its regular grain structure and waxy lustre that complements yellow gold. Alternatively, vegetable-tanned calf leather offers an evolving texture over time, whilst shell cordovan provides a striking contrast. For maximum formality, a deep black with grey-brown undertones ensures elegance without visual detachment.

Remove the lugs using a strap-removal tool or thin flathead screwdriver, pushing the pins upward from beneath. Position the new 12mm strap by inserting the upper end into the lug housing first, then lower the bottom end until the lug pin engages. Repeat on the opposite side. For precision, use a screw-type strap-change tool.

Any strap featuring a 12mm lug width is compatible, provided it utilises standard straight lug pins (non-welded barrels). Artisanal offerings from milanostraps.it provide complete 12mm collections in hand-selected leathers with bespoke finishing options, including modern deployment systems for enhanced wearing comfort and security.

A vegetable-tanned calf strap typically lasts 2-3 years of daily wear, whilst alligator and shell cordovan straps endure 4-5 years or longer, developing natural patina. Longevity depends on usage intensity, climate exposure, and maintenance practices (avoid prolonged moisture and soiling). Casati Milano straps are backed by an 18-month warranty against manufacturing defects.