Strap for Datograph Up/Down Platinum Lumen

The lug width is 20mm. This dimension corresponds to the 41mm case diameter according to the harmonic proportion typical of the Manufactur Lange. Verify by measuring the distance between the two spring bars that secure the strap: precision is essential for comfort and security.

Black alligator is the reference choice: its natural texture dialogues with the Guilloché dial without competing aesthetically. For those who prefer authentic patina development, vegetable-tanned calf leather offers genuine evolution. For contemporary practicality, FKM rubber with a stainless steel deployante ensures versatility and comfort.

Obtain a spring bar tool or consult an expert. Position the strap, insert the tool into the slot beneath the spring bar, apply gentle pressure inward to release the spring, and withdraw the bar. Repeat on the opposite side. Install the new strap by reversing the procedure. If uncertain, the Casati Milano service can perform this in-atelier.

Yes, provided it is 20mm and crafted from noble materials: alligator, shell cordovan, vegetable-tanned calf, or FKM rubber. Avoid synthetics or overly lacquered finishes. A Lange deserves aesthetic coherence: the strap quality must reflect the case's value. The milanostraps.it selection guarantees certified artisanal standards.

A quality alligator or calf strap typically lasts 4–7 years with daily wear, depending on care and climate. Humidity and perspiration accelerate deterioration; protection from rain and dry heat slows it. A shell cordovan strap, thanks to material density, can exceed 10 years. Casati Milano offers an 18-month warranty on manufacturing defects and provides maintenance guidance.