IWC
Da Vinci IW3728-06— lug 19mm

The lug width of the IW3728-06 is 19 millimetres. This is the vertical space between the two lugs of the case where the strap attaches. It is a specific measurement for this model and essential for aftermarket strap compatibility. You can verify this with a digital calliper by measuring the distance between the point where the strap exits one lug and the point where it enters the opposite lug.

Alligator with traditional tanning represents the choice that best amplifies the Da Vinci's aesthetic identity: the natural geometric grain creates visual consonance with the chronograph's constructive precision. Shell cordovan offers exceptional density and durability, ideal if the watch becomes a daily instrument. Vegetable-tanned calf develops a depth of colour over time. For technical use, NATO and rubber guarantee practicality without aesthetic compromise.

Changing the strap on this model requires a specific tool: the spring bar tool, a small metal lever that allows you to compress the internal springs of the lugs. Insert the tip of the tool into the small lateral slot of the lug, compress the spring, slide the old strap outward. Repeat the operation on the other lug. For the new strap, align the ends with the lug holes, compress the spring again with the tool and slide until you hear the click of closure. If you are not familiar with the procedure, a professional watchmaker can complete the operation in a few minutes.

Yes, absolutely. Any strap with a lug width of 19 millimetres is compatible with the IW3728-06. Milano Straps offers a complete collection of artisanal straps in this size, available in various materials (alligator, cordovan, calf, NATO, rubber), colours and finishes. You can personalise them in length, initials and stitching thread type. All straps are tested for perfect fit with IWC lugs.

The lifespan of a leather strap depends on the material, frequency of wear and care. A quality artisanal alligator or shell cordovan, with moderate use and proper maintenance, easily reaches 5-7 years before showing significant wear signs. Vegetable-tanned calf tends to develop patina more rapidly (2-3 years), but this is part of the aesthetic appeal. Milano Straps straps are made with selected leathers and professional finishing, ensuring superior longevity. Essential care: avoid prolonged wetting, protect from direct heat sources and occasionally apply strap-specific conditioner.