Strap for Star Traditional XL Black

The lug width of the Montblanc Star 102136 is 20mm. This measurement, expressed in millimetres between the lugs, is precise and non-variable. To verify it, use a calliper positioned perpendicular to the dial, measured from lug to lug. Only straps with a 20mm lug width will fit your watch correctly.

The choice depends on the context of use. For formal wear, we recommend alligator or calf leather in dark tones (black, dark brown, navy blue), which create an aesthetic contrast with the steel case. For everyday-elegant use, vegetable-tanned calf is the most versatile choice, as it develops a natural patina over time. For casual-sporty occasions, cotton and nylon NATO straps offer practicality whilst maintaining formal rigour.

Strap replacement requires extraction of the spring bars from the case. Proceed as follows: 1) position the watch on a flat surface with the dial facing down; 2) identify the small metal ring at the end of each spring bar; 3) use a dedicated tool (spring bar remover) to compress the spring and extract the bar; 4) remove the old strap; 5) insert the new strap and slide the spring bar into the lugs until it locks. If you are unfamiliar with the procedure, contact Casati Milano for assistance.

Yes, any strap with a 20mm lug width is compatible with the 102136, regardless of the original brand. However, reliability and longevity depend on the strap's construction quality: a bespoke strap in genuine leather or alligator guarantees superior performance and aesthetics compared to generic industrial straps. Choosing an artisanal Casati Milano strap ensures a durable solution consistent with the case's quality.

Longevity depends on the material and conditions of use. A quality vegetable-tanned calf strap, worn daily with moderate care, typically lasts 4-5 years before replacement due to natural wear. Alligator, a harder material, may last 6-8 years. Prolonged exposure to moisture, perspiration, and UV rays accelerates deterioration. An artisanal strap develops a noble patina over time; when wear becomes noticeable, you can request regeneration or replacement with a new one. Textile NATO straps typically last 3-4 years with intensive use.