Strap for Datograph Perpetual Tourbillon Platinum / Black

The A. Lange & Söhne Saxonia 740.036 is fitted with 20mm lugs. This measurement refers to the distance between the centres of the attachment holes on the sides of the case. The 20mm lug width is specific to this model and requires straps constructed to the same precision standards as the case itself.

Alligator in ebony or dark brown is the most elegant choice for the Saxonia 740.036 in platinum. Alternatively, shell cordovan develops a natural patina that synchronises with the ageing of the case. Vegetable tanning ensures the strap acquires increasingly rich tones over time, reflecting Lange's philosophy of constructive perfection.

Changing the strap on the Saxonia 740.036 requires extraction of the lugs using a specialised tool (spring bar remover). Each lug is secured by a spring-loaded pin; depress the pin and slide the lug out. Insert the lugs into the new strap whilst maintaining alignment, then reposition the watch. If you lack experience, we recommend consulting a specialist craftsman.

Yes, all straps constructed with 20mm lug width are compatible with the Saxonia 740.036. However, we recommend artisanal straps that respect the quality standards of the case: vegetable-tanned leather, leather or precious metal passants, flawless finishing. Mass-produced inexpensive straps betray the value and purity of the model.

A high-quality leather strap (alligator, shell cordovan, vegetable-tanned calf) has a lifespan of 5–8 years with regular use. Climate, skin perspiration and maintenance influence longevity. Vegetable tanning allows the strap to age elegantly and be restored by a specialist craftsman, further extending the useful life of the piece.