A. Lange & Söhne
Lange 1 101.033— lug 20mm

The A. Lange & Söhne Lange 1 ref. 101.033 features a 20mm lug width. This measurement should be taken between the two lugs of the case using a precision caliper or millimeter ruler, positioned perpendicular to the case. All 20mm compatible straps are available on milanostraps.it.

For the Lange 1 101.033 in rose gold, the most aesthetically coherent choice is an alligator belly or hornback strap in cognac, tobacco, or dark brown tones. Bordeaux box calf is a more subtle alternative with excellent aging patina over time. For less formal wear, midnight blue calf creates an elegant color contrast with the rose gold case.

The strap change on the Lange 1 101.033 is performed using classic springbars — spring-loaded bars — that connect the strap to the case lugs. Using a specialized fine-tipped tool (springbar tool), you compress the bars and extract the strap. Given the precious nature of the rose gold case, it is recommended to entrust this to a professional or use a protective mat to avoid scratches on the polished surfaces.

Yes, there are numerous aftermarket straps compatible with the Lange 1 101.033, provided they respect the 20mm lug width and the curved geometry of the case lugs. On milanostraps.it you will find a curated selection of 20mm straps in alligator, calf, NATO, and rubber, handcrafted and compatible with this reference. For a completely custom solution, Casati Milano offers a bespoke service by appointment.

The lifespan of a leather strap depends on the quality of the leather, frequency of use, and exposure to sweat and humidity. A quality alligator strap, with regular use and proper maintenance — drying after wear, rotating between multiple straps — can last 2 to 5 years. Calf tends to have a slightly shorter lifespan but develops a characteristic patina. Casati Milano guarantees its straps for 18 months against manufacturing defects.