Strap for Quai des Bergues N°31

The lug width of the Czapek Quai des Bergues QDB31 is 20mm. This specification requires precise strap selection: measure the space between the inner shoulders of the lug bars to confirm accuracy. A 20mm lug width on a 42.5mm case creates visual proportionality and wrist stability, distinguishing the QDB31 from most contemporary timepieces of similar diameter.

For the QDB31 in red gold, we recommend an alligator strap with vegetable tanning in dark brown, cognac, or burgundy tones, which naturally harmonizes with the warm reflections of the case. Alternatively, high-grade calfskin with a matte finish offers formal elegance, whilst a six-ply silk-blend NATO maintains versatility. Avoid plastified or glossy materials: the QDB31 demands straps with texture, patina development, and natural breathability.

Strap replacement requires a Spring Bar Tool or, alternatively, a thin flat implement. Position the tool tip beneath the spring bar connecting the strap to the lug, apply gentle pressure to release the spring mechanism, then slide out the old strap. Insert the new 20mm strap through the lug, ensuring the spring bar fully engages. If unfamiliar with this procedure, consult an authorised service centre.

Yes, any strap with a 20mm lug width is dimensionally compatible with the QDB31. However, dimensional compatibility does not guarantee aesthetic harmony: the QDB31, with its sculptural case architecture and high-end construction details, deserves a strap of comparable quality. Artisanal straps in alligator, calfskin, and shell cordovan represent the ideal choice to respect the timepiece's aesthetic ambition and develop coherent patina over time.

A high-quality leather strap (alligator, calfskin, shell cordovan) worn daily on a timepiece like the QDB31 has an average lifespan of 3 to 5 years before replacement becomes necessary. This interval depends on intensity of use, ambient humidity, and care practices. Vegetable-tanned leather tends to age more elegantly, developing patina and suppleness. Protect the strap from prolonged water exposure and occasionally apply a leather-specific balm to extend longevity.