Strap for Horological Machine N°3 JWLRYMACHINE Pink

The lug width of the MB&F Horological Machines 33.RQTL.B is 20mm. This measurement represents the distance between the two lugs of the case. It is crucial to verify that any strap purchased has exactly 20mm width: even minor variations will cause loosening or accelerated wear of the lugs.

The MB&F 33.RQTL.B, with its 18-carat rose gold case and sculptural proportions, pairs magnificently with alligator straps in brown or black, anilina calf in burgundy, or shell cordovan. For a more casual-contemporary approach, a navy or stone grey NATO strap offers aesthetic versatility while maintaining formal dignity.

The strap is secured to the lugs via spring bars (transverse metal pins). To remove it: position the watch on a soft support, locate the pins holding the spring bars in position, use a spring bar tool to release the bar from one lug, then the other. Insert the new strap by operating in reverse. If inexperienced, consult a watchmaker.

Any strap with a 20mm lug width is compatible. The finest specialised suppliers offer full-grain leather, certified alligator, anilina calf and NATO spring bars. Always verify that the width is exactly 20mm and that thickness does not exceed the limit allowed by the lugs (typically 2.5–3mm at the shoulder).

A quality leather strap, worn regularly, has an average lifespan of 3–5 years. Longevity depends on: type of tanning (vegetable-tanned lasts longer), frequency of use, environmental conditions (humidity accelerates deterioration), and maintenance (keep it dry, avoid excessive twisting). Shell cordovan or vegetable-tanned calf straps exceed 5–7 years. Authentic alligator, with equal care, easily reaches 8 years.