Strap for Da Vinci Perpetual Stainless Steel / White / English

The IWC Da Vinci IW3750-13 features a 19-millimetre lug width. This is a specific measurement and not the industrial standard of 20mm. To verify with precision, use a digital calliper on the spring bar seat, measuring the distance between the two support pins that hold the strap. This measurement ensures harmonious proportions with the 39mm case diameter and determines full compatibility with 19mm straps.

Alligator leather represents the most elegant formal choice, with its geometric texture that accentuates the clean lines of the case. Alternatively, calf leather with vegetable tanning offers chromatic versatility and ages naturally over time, developing dignified patina. For those preferring practicality, vulcanised rubber on a steel deployant clasp ensures comfort and longevity with minimal maintenance. NATO nylon is the contemporary choice—sporty without compromising the watch's intrinsic elegance.

Strap replacement occurs through the spring bars (push pins) positioned at the sides of the case. Use a dedicated tool (spring bar tool) to gently compress the bar and remove it from its seat. Extract the old strap and position the new one, aligning it with the pins. Reinsert the spring bar into its seat and verify correct positioning on both sides. For added safety, entrust the task to a specialised workshop.

Yes, provided the strap measures exactly 19mm in lug width. Quality aftermarket straps, constructed from premium materials such as alligator, vegetable-tanned calf or vulcanised rubber, are perfectly compatible. Always verify that the strap lugs align correctly with the case without leaving visible gaps. Bespoke straps, customisable in colour and stitching thread, represent a significant aesthetic enhancement over standard options.

Longevity depends on leather quality and frequency of wear. A well-maintained vegetable-tanned calf strap resists 3 to 5 years under moderate daily use. Alligator, being more durable, can exceed 6 years. Determining factors include: sun exposure (causes fading), excessive humidity (deteriorates fibres) and maintenance (periodic cleaning with damp cloth extends lifespan). A vulcanised rubber strap has similar durability but requires attention to cracks caused by extreme temperatures. Bespoke craftsmanship guarantees cover construction defects for 18 months.