Strap for Portuguese Perpetual Calendar Tourbillon Platinum / Silver

The lug width is 22mm. This dimension is specific to this model and is determined by the distance between the strap attachment points on the 45mm case. Accurate measurement is essential: place a ruler between the inner vertices of the upper and lower lugs to ensure perfect compatibility.

Mississippi alligator in ocean blue tones represents the perfect pairing for the understated elegance of this platinum model. However, vegetable-tanned calf leather in mahogany brown, formal black calf, and even greyish-blue calf create compelling combinations depending on your wearing context. The choice hinges on visual balance between the platinum's neutrality and the leather's character.

Strap replacement requires a spring bar removal tool. Place the watch on a soft surface, locate the small lateral holes at each lug attachment, gently insert the tool to release the spring bar, and slide off the old strap. Work methodically (upper lug first, then lower) to avoid asymmetrical pressure on the case.

Yes, provided the lug width is precisely 22mm. Artisanal straps from Milano Straps are specifically crafted for this dimension and guarantee total compatibility. It is essential to verify that the spring bars used match the original IWC specifications in both diameter and length.

Durability depends on material type and usage patterns. High-quality alligator, with standard maintenance (protection from standing water and prolonged direct sunlight), maintains structural integrity for 5-7 years. Vegetable-tanned calf leather ages beautifully for 4-6 years before showing signs of wear at the bend points. Best practice: rotate straps to distribute wear over time.