Strap for WW1 Chronographe Monopoussoir Ivory

The lug width of the Bell & Ross Vintage BRWW1-MONO-IVO/SCR is 22 millimetres. This is a historical standard for 45-millimetre cases and ensures visual balance between the generous case diameter and the strap. To verify the measurement, place a calliper or rigid ruler perpendicular between the two lugs, measuring the distance in millimetres.

For the Bell & Ross Vintage BRWW1-MONO-IVO/SCR, we recommend straps in alligator or Nile crocodile, with finishes that enhance the ivory dial. Alternatively, aged calf leather with vegetable tanning or structured rubber maintain the sporting authenticity. Choice depends on use: formal (dark alligator), versatile (grey or brown calf), casual-aviatory (rubber or NATO).

To change the strap, use a spring bar tool. Position the tool under the lug at 6 o'clock, pushing gently upward to release the spring bar. Remove the bar, take off the old strap and insert the new one, ensuring the spring bar is properly seated in both holes. If unfamiliar with the procedure, contact Casati Milano atelier for professional service.

Yes, any strap with a 22-millimetre lug width is compatible with the Bell & Ross Vintage BRWW1-MONO-IVO/SCR. Milano Straps offers a selection of artisanal 22mm straps customisable in leather, sizes, initials and stitching thread. Always verify the width is exact to avoid abnormal pressure on the lugs.

A premium leather strap (alligator, crocodile, calf with vegetable tanning or shell cordovan) has an average lifespan of 3–5 years with daily wear, up to 7–10 years with occasional use. Durability depends on UV exposure, humidity, perspiration and cleaning frequency. Milano Straps straps include an 18-month warranty. The patina that forms over time is a sign of leather nobility, not deterioration.