Strap for Endeavour Centre Seconds Stainless Steel / Diamond / Blue Lagoon Purity

The H. Moser & Cie Endeavour 1200-1207 is fitted with a 20-millimetre lug width. This measurement represents the internal distance between the two lugs on the case and is crucial for selecting an aftermarket strap that will fit correctly. Any strap intended for this model must adhere strictly to this specification, otherwise proper attachment cannot be achieved.

The ideal strap depends upon your intended use and personal preference. A tobacco-brown alligator or vegetable-tanned calf leather amplifies the aesthetic restraint of the model; the latter will develop a compelling patina over time. For daily wear, a quality cotton-polyester NATO offers durability, whilst FKM rubber guarantees resistance to the elements. A deep black in calf or alligator is the choice for formal evening occasions.

Strap replacement requires specific tools: a spring bar tool and, preferably, magnification. Insert the flat tip of the spring bar tool into the small aperture beneath the case lug, gently lift the internal spring and withdraw the old strap. Once the lugs are free, insert the new strap – ensuring it is 20mm wide – by engaging the return pins into their respective seats. If uncertain, professional assistance from a watchmaker is advisable.

Yes, provided the strap is specifically designed for a 20-millimetre lug width. Specialised manufacturers such as Milano Straps produce artisanal straps in various finishes (alligatore, vegetable-tanned calf, NATO, rubber) and precise dimensions. Always verify the technical specification before ordering to avoid incompatibility.

Leather strap longevity depends upon frequency of use, climatic conditions and material quality. A vegetable-tanned calf or quality alligator strap typically offers 2–4 years of daily wear before replacement becomes necessary; however, vegetable-tanned leather develops a desirable patina that many collectors appreciate over time. Regular maintenance – protection from excessive moisture, drying after water exposure – significantly extends longevity.