Strap for Lady Serenade Stainless Steel / Diamond / Valentine's Day - Folding

The lug width of the Glashütte Original Lady Serenade 1-39-22-21-22-04 is 18 mm. This dimension is specific to this model and corresponds to the constructive proportions of the 36 mm case. When ordering a strap, ensure you verify the lug width correctly: place a ruler parallel to the 12-6 o'clock axis and measure the free space between the two lug contact points.

The best strap depends on intended use and personal colour palette. For formal elegance, we recommend alligator or vegetable-tanned calf leather, which develop a natural patina improving over time. For daily versatility, an anthracite grey NATO strap maintains aesthetic balance without visual competition. For aquatic contexts, FKM rubber is the optimal choice. All 18 mm straps available on milanostraps.it have been tested for constructive compatibility.

Strap replacement requires specific tools: a spring bar tool and a stable support base. Position the watch face-down on a soft surface. Locate the lug of interest and, using the spring bar tool, gently press the retaining pin towards the case centre. Simultaneously, lift the lug with slight upward pressure. Once the pin releases, the lug will detach. Repeat for the opposite lug. Insert the new strap by reversing the procedure, ensuring both pins are fully seated in their slots.

All straps with 18 mm lug width are compatible with the 1-39-22-21-22-04 model. On milanostraps.it you will find straps crafted in alligator, vegetable-tanned calf, shell cordovan, organic NATO fabric, and FKM rubber, all designed for this dimension. Before purchasing, always verify the declared lug width from the manufacturer. Casati Milano straps are bespoke-realised at the atelier by appointment, guaranteeing certified constructive compatibility.

Durability depends on the tanning method employed and use intensity. An alligator or vegetable-tanned calf strap, worn daily, maintains structural integrity for 4–6 years before restoration is required. Vegetable-tanned leather is more susceptible to visible wear than industrial chrome tanning, but this behaviour is desirable as it develops a patina that enhances aesthetics over time. Continuous exposure to humidity, perspiration, and UV radiation accelerates ageing. A strap used occasionally may last 8–10 years without significant intervention. Straps commissioned from Casati Milano include a dedicated restoration service to extend the operational lifespan of the component.