Strap for Chronoris Limited Edition / Bracelet

The lug width of the Chronoris 01 673 7739 4034-Set MB is 20 millimetres. This measurement refers to the centre-to-centre internal distance between the two fixed lugs of the case. A 20mm strap inserts into this slot without play, ensuring hermetic closure and coherent readability of the watch's geometry.

The most suitable strap depends on intended use: for desk elegance, choose vegetable-tanned alligator in brown; for sport, slate-blue calf or black NATO; for underwater use, FKM rubber with cross-hatching. All must be exactly 20mm for geometric compatibility with the case's fixed lugs.

The lugs are fixed: they do not feature standard spring bars. Strap replacement requires removal of the keeper via a dedicated strap removal tool, an operation we recommend entrusting to a professional watchmaker. The strap slides from the lugs without requiring invasive tools on the case.

Yes, provided the strap is exactly 20mm in width. Straps of other dimensions (19mm or 21mm) cause excessive play or insertion difficulty. MilanoStraps.it produces only 20mm straps for this model, with guaranteed metric tolerance.

A vegetable-tanned strap (alligator or shell cordovan) lasts 4–7 years with intensive daily use, thanks to the natural patina that increases tensile resistance. Mass-dyed calf resists 3–5 years. FKM rubber exceeds 10 years without elasticity loss. Longevity depends on ambient temperature, perspiration, and regular maintenance.