Strap for Da Vinci Perpetual Yellow Gold / Paved / French

The IWC Da Vinci Perpetual Calendar IW3750-18 features a lug width of 19 millimetres. This standard width for dress watches at 39mm ensures balanced proportions and allows the use of artisanal straps compatible with this specific measurement.

Alligator remains the natural choice for this yellow gold watch, as its regular texture and fine grain dialogue perfectly with the classical lines. Worthy alternatives include soft calf (dark brown or slate grey for modern contrasts), shell cordovan for deep patina, or vegetable tanned leather for chromatic evolution over time.

Use a digital calliper to measure the internal distance between the two lugs of the case (the lateral attachments). Measure from inner wall to inner wall of the empty space where the strap passes. The exact value for the IW3750-18 is 19mm. Do not measure the thickness of the lugs themselves, but the free space.

Yes, any strap with a certified lug width of 19 millimetres is compatible with the IW3750-18. Ensure that the strap has been cut according to your wrist circumference requirements and that it features the attachments (spring bars or deployant clasp) sized correctly to safely accommodate the case pins.

An artisanal alligator or quality calf strap offers a lifespan of 4-8 years of daily wear, depending on climate, frequency of wear and maintenance. Vegetable tanned leather tends to age better visually but requires periodic care (conditioning). Straps from ateliers such as Casati Milano include an 18-month warranty and the possibility of regeneration or seasonal leather replacement.