Strap for DB25 Perpetual Calendar White Gold / Anthracite

The De Bethune DB25 DB25QPAWS8 features a lug width of 20 millimetres. This measurement is determined by the geometry of the 44mm white gold case and ensures balanced proportions between the case diameter and strap attachment. The measurement must be taken between the two lugs using a calliper, positioning it perpendicular to the case-strap junction line. Precise measurement is essential to avoid straps that are too wide, causing overhang, or too narrow, which would compromise the overall aesthetics.

For the DB25QPAWS8 in white gold with perpetual calendar movement, three primary solutions are recommended: black or chestnut brown alligator for a formal and luxurious register, vegetable-tanned leather that develops natural patina over time and ensures aesthetic versatility, and a NATO fabric strap for those desiring a contemporary approach whilst maintaining elegance. Alligator represents the noblest choice as its natural grain perfectly complements the quadrant's stellar geometry. Vegetable-tanned leather offers adaptability to various contexts, whilst NATO creates an elegant contrast between constructive simplicity and the sophistication of the DB2324 calibre.

Changing the strap on watches with 20mm lugs requires precision and appropriate tools. First, obtain a spring bar tool or small hammer and watch-specific levers. Position the watch with the case facing upward and locate the spring bar (or bayonet mechanism) that passes through the lug and case. Gently push the bar upward using the lever, holding it with your finger to prevent dropping. Remove the old strap. Insert the new strap, aligning the holes, and push the spring bar until it clicks into place. If the De Bethune features a proprietary attachment system, consult the brand's specific instructions or contact a specialist watchmaker.

Any aftermarket strap with a 20-millimetre lug width is compatible with the DB25QPAWS8, provided it respects dimensional specifications and strap thickness (typically 1.4–1.6mm for noble leathers, 3–4mm for NATO straps). Straps in alligator, vegetable-tanned calf, shell cordovan, and quality NATO fabrics are recommended, as they preserve the constructive elegance of the watch. Avoid excessively thick straps or those made from economical materials, as they may alter the De Bethune's aesthetics and compromise wearing comfort. Always verify that attachment pins are precisely calibrated to the lug width.

The lifespan of a leather strap depends on daily use, moisture exposure, and maintenance. An artisanal-quality alligator strap used in formal contexts and protected from excessive humidity may last 5–8 years before requiring replacement. Vegetable-tanned calf tends to develop patina within the first year, extending perceived longevity to 6–7 years. Shell cordovan, if properly maintained, can exceed 10 years. To extend strap life, avoid direct water immersion, protect from excessive perspiration, and periodically condition with specific creams. Many De Bethune collectors prefer alternating multiple straps to distribute wear and preserve the main strap reserved for formal occasions.