Strap for Oris TT1 01 674 7659 4163

The Oris TT1 01 674 7659 4163 features a lug width of 25 millimetres. This oversize dimension was deliberately chosen to balance the generous 45mm case proportions visually. To verify compatibility with your specific example, measure the distance between the two lug terminals on the case: it must be exactly 25mm.

The optimal choice depends on intended usage. For sporting elegance, we recommend authentic alligator or shell cordovan, both offering exceptional durability and extraordinary patina development over time. For uncompromising practicality, a heavyweight cotton NATO or FKM rubber strap provides superior resistance and tool-free changes. Chrome-tanned calf leather represents the ideal equilibrium between refinement and functionality.

The TT1 employs a spring bar suspension system. Obtain a spring bar tool (removal instrument for the suspension bar). Position the tool's end into the designated holes at the bar's extremities, apply gentle pressure to release the spring mechanism, then extract the existing strap. Insert the new strap by first positioning one side of the bar, then gently push the opposite side until the spring locks into position. Verify that the bar is securely anchored.

Absolutely. The Oris TT1 is fully compatible with all premium aftermarket straps featuring a 25mm lug width. Milano Straps curates a refined selection of handcrafted straps in alligator, shell cordovan, vegetable-tanned leather, NATO, and rubber—all available in 25mm specification. Artisanal quality guarantees durability and aesthetic superiority compared to standard replacement straps.

Longevity varies according to material and usage patterns. A shell cordovan strap endures 8–12 years under daily wear; vegetable-tanned leather, 5–7 years; chrome-tanned calf, 4–6 years. Authentic alligator readily achieves 10+ years. Perspiration exposure, UV radiation, and wrist circumference significantly influence lifespan. Periodic maintenance—gentle cleaning and conditioning treatments—substantially extends strap longevity.