Strap for Portofino Perpetual Calendar Rose Gold / Silver

The lug width of the Portofino IW344602 is 20mm. This measurement is crucial when selecting an aftermarket-compatible strap: the spring bar must accommodate the strap with precision to avoid lateral play or excessive compression. Measurement is performed by positioning a digital calliper between the lug shoulders, in the area where the strap inserts.

The optimal choice depends on intended use. For formal contexts, alligator in cognac or shell cordovan represent the most elegant options, reflecting the silvered dial without competing with the rose gold patina. For daily wear, vegetable-tanned calf offers a balance between sustainability and tactile luxury. In summer, light beige or washed grey leather ensures chromatic freshness. NATO rubber straps are justified only in neutral tones (black, anthracite), suited to a sportier approach.

Strap replacement requires a small tool: a spring bar extraction tool. Position the flat tip beneath the spring bar within the designated groove, releasing tension. The bar will snap laterally, allowing strap extraction. Reverse the procedure with the new strap, ensuring the bar is fully inserted and locked. If uncertain of the procedure, entrust the operation to a qualified watchmaker to avoid damage to the case.

Yes, any strap with a certified 20mm lug width is technically compatible. However, technical compatibility does not guarantee aesthetic harmony: the Portofino IW344602 is a dress watch demanding proportionate straps in height (typically 18-20mm at case level) and noble material. Strap height and leather thickness must respect the proportions of the 40mm case. Straps offered by MilanoStraps are pre-selected for this harmony, ensuring optimal visual result.

The lifespan of a leather strap depends on usage, climate, and craftsmanship quality. High-quality alligator or cordovan typically guarantees 3-5 years of daily wear, sometimes longer. Vegetable-tanned regenerated calf usually offers 2-3 years before the surface shows visible wear signs. Leather fears excessive moisture, direct sunlight, and salt water. To prolong strap life, store the watch in a dry environment when not worn. If the strap breaks, replacing the spring bar maintains the same leather for additional years. Casati Milano offers an 18-month warranty on all handcrafted straps.