Strap for Constellation Manhattan 28 Quartz Sedna Gold / MOP - Emerald / Diamond

The Omega Constellation 131.55.28.60.55.005 has a lug width of 18mm. This dimension is precise and admits no variation: the case lugs are exactly 18mm apart. Any compatible strap must have this exact width to fit correctly.

For the 131.55.28.60.55.005 in Sedna Gold, the ideal strap is in dark brown or cognac alligator, vegetable-tanned. Alligator creates elegant tactile contrast with the gold, ages gracefully and develops a patina that mirrors the aging of the case. Alternatively, black calf in satin finishes for formal occasions, or navy rubber for daily practicality while maintaining elegance.

To change the strap, obtain a spring bar tool, readily available. Position the case horizontally, locate the lateral pins between case and strap, insert the tool tip into one of the small lateral holes to depress the pin, then remove the lug. Repeat for the other side. Insert the new strap by aligning the pins in their seats, verifying they click into place correctly. If unsure, entrust Casati Milano with the change in their atelier.

Yes, all straps with an 18mm lug width are compatible with the 131.55.28.60.55.005. Online you will find options of varying quality: milanostraps.it offers handcrafted 18mm straps in noble materials (alligator, calf, shell cordovan) with initial personalization and custom stitching. For supreme quality, Casati Milano creates bespoke straps tailored to measure with personalized sartorial consultation.

A quality leather strap (alligator, calf) lasts 3-5 years with daily use, increasing to 7-10 years with rotation among multiple straps. Vegetable-tanned leather ages visibly but resists, while industrial tanneries degrade more rapidly. Casati Milano guarantees 18 months on the strap, but real-world life depends on frequency of use, sun exposure, perspiration and maintenance. Applying specific balm every 12-18 months extends its useful life.