Strap for Artelier Date Diamonds 31 Stainless Steel / Silver / Bracelet

The lug width of this model is 14 millimetres. This measurement is specific to the 31-millimetre case diameter. To verify compatibility with a replacement strap, measure the distance between the lugs using a digital calliper, starting from the inner edge of one lug to the inner edge of the other lug, passing through the centre of the case.

The choice depends on usage and personal style. For formal contexts, vegetable-tanned calf leather in neutral tones (black, dark brown, anthracite grey) or structured alligator are recommended. For daily wear, NATO straps in cotton or high-grade FKM rubber provide practicality and comfort. Regardless of material, ensure the strap is compatible with the 14-millimetre lug width.

The strap is replaced by removing the spring bars using a dedicated tool, typically a small lever or rounded pick. Gently compress the spring bar to release it from one side, then repeat on the other side. Insert the new strap, align the holes with the spring bars, and press firmly until you hear or feel a click indicating secure seating. If unfamiliar with the procedure, consult a professional watchmaker to avoid damage to the case.

Yes, aftermarket straps from reputable manufacturers are entirely compatible provided they respect the 14-millimetre lug width specification. Milanostraps offers a specialised collection of 14mm straps constructed with premium leathers, vegetable tanning, and artisanal finishes. Using an aftermarket strap does not compromise your Oris warranty and allows for aesthetic personalisation of the timepiece.

Leather strap longevity varies depending on usage frequency, climate, and tanning quality. Vegetable-tanned calf leather used daily under normal conditions (avoiding excessive humidity, intense perspiration, or mechanical stress) typically lasts between 3 and 5 years. Well-executed leather develops authentic patina and character over time. Occasionally conditioning the leather extends strap lifespan. Rubber and NATO straps have different durability profiles, generally longer-lasting but with less aesthetic ageing.