De Bethune
DB16 DB16RS1— lug 18mm

The De Bethune DB16RS1 features a lug width of 18 millimetres. This measurement, taken between the inner edges of the two lugs on the case, is the critical parameter for selecting a compatible strap. The geometry of the lug, machined from solid rose gold, requires millimetre precision: we recommend verifying the exact distance with a digital calliper before purchase, as even minor variations compromise the fit of the strap bar.

For the DB16RS1, Grade A alligator in black or dark brown represents the most coherent choice with the watch's aesthetic. Burgundy shell cordovan offers a warm tonality that dialogues elegantly with rose gold and develops natural patina over time. Vegetable-tanned calf leather, soft initially and increasingly patinated with use, permits a unique visual narrative. For sportier contexts, NATO canvas straps in grey-antracite Cordura or FKM rubber guarantee functional versatility without aesthetic compromise.

The procedure requires specific tools: a spring bar tool with dual soft-tipped pins and a well-illuminated work area. Position the watch with the upper lug facing upward; insert the tool into the small lateral hole of the lug pin, press gently to compress the internal spring and facilitate upward extraction. Once this motion is complete, the pin slides out of the lug. Procedure identical for the lower lug. Avoid excessive force: the De Bethune geometry, with lugs machined from solid metal, does not tolerate traumas that could cause invisible microfractures.

Yes, provided the strap is manufactured specifically for 18-millimetre lugs. The construction quality of the strap must reflect at least partially that of the watch: vegetable-tanned leather crafted traditionally, double stitching with waxed thread, quality leather keeper, and a deployante clasp (if present) in ennobled metal. Milano Straps supplies straps certified for this size, laboratory-verified and customisable according to colour and finish preferences. An inferior-quality strap visually betrays the investment in the DB16RS1.

A Grade A alligator or shell cordovan strap with traditional tanning maintains structural functionality for three to five years of daily wear. The buckle and keeper are the elements subject to greatest stress. Factors that reduce lifespan: prolonged direct sunlight exposure (which desiccates the leather), frequent contact with unrinsed water (which degrades fibres), and constant tension. A vegetable-tanned calf strap tends to develop visible patina within six months, signalling positive aesthetic ageing. To extend functional life, we recommend storing the watch in a dry location and, during prolonged non-use periods (beyond two weeks), gently rolling the strap to prevent cracks from stiffening.