Oris · Artelier

Strap for Artelier Complication 40.5 Stainless Steel / Silver

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter41 mm
Reference01 781 7703 4051-07 5 21 70FC
FamilyArtelier
MovementOris caliber Oris 781 hours, minutes, seconds, Additional 24 hours Hand (adjustable) | date, day | moonphase
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Artelier 01 781 7703 4051-07 5 21 70FC

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Artelier 01 781 7703 4051-07 5 21 70FC, seen from the bench

The Oris Artelier 01 781 7703 4051-07 5 21 70FC is a 40.50 mm stainless steel watch embodying Basel manufacture philosophy, rejecting ornamental complications in favor of pure mechanical engineering. Powered by the internally developed Oris 781 manual-wind caliber, it features hours, minutes, seconds, adjustable GMT hand, day and week indication, and moon phase complication. The 21 mm lug width ensures optimal visual balance between case and strap.

Frequently asked questions

What is the lug width of the Oris Artelier 01 781 7703 4051-07 5 21 70FC?

The lug width of this model is exactly 21.00 millimetres, a non-standard measurement compared to the more common 20mm specification. This dimension provides balanced proportions between the 40.50mm case diameter and the strap, emphasising the solid construction principles of the design. Precise verification of this measurement is essential before ordering a compatible strap, as even minor errors compromise proper fitment and watch security.

What is the best strap for the Oris Artelier 01 781 7703 4051-07 5 21 70FC?

The optimal choice depends on intended use. For formal contexts, an alligator or vegetable-tanned calf leather strap complements the watch's inherent elegance and constructive philosophy. For versatile daily wear, a NATO strap in cordura offers robustness and tool-free changeability. For those seeking natural aesthetic evolution over time, vegetable-tanned leather develops characteristic patina. For maintenance-free practicality, rubber or synthetic materials are ideal. All materials must conform to the 21mm lug width specification.

How do you change the strap on an Oris Artelier 01 781 7703 4051-07 5 21 70FC?

Strap replacement requires minimal tools: a spring bar tool (small metal device) or precision pen. Position the watch face-down on a soft surface. Insert the spring bar tool into the small lateral notch at the lug, gently compressing the internal spring mechanism, then extract the pin from its seat. Repeat for the opposite lug. Install the new strap by reversing the process, ensuring pins are fully inserted and the strap sits straight. Those preferring to avoid risk may entrust the operation to a professional watchmaker or jeweller.

What is the difference between a compatible aftermarket strap and an original Oris strap?

A high-quality artisanal aftermarket strap (such as those from milanostraps.it) offers aesthetic versatility, often superior materials (vegetable-tanned leather, genuine alligator) and customisation impossible with factory straps. Original Oris straps guarantee certified compatibility and design coherence, though they limit individual expression. For the 01 781 7703 4051-07 5 21 70FC with its non-standard lug width, a reliable aftermarket strap enables exploration of colour and material combinations without compromising authenticity, provided it meets precise technical specifications.

How long does a leather strap last on a watch like the Oris Artelier 01 781 7703 4051-07 5 21 70FC?

Leather strap longevity depends on multiple factors: tanning quality (vegetable versus synthetic), frequency of use, exposure to moisture and perspiration, and storage conditions. An excellent vegetable-tanned leather strap typically lasts 5–8 years with moderate wear, developing patina and character. Synthetic leather straps last 2–4 years. Constant exposure to moisture, saltwater or intense perspiration significantly shortens lifespan. Regular maintenance—cleaning with a damp cloth, treatment with natural balms—extends useful life. Given that the Artelier is a luxury watch with mechanical movement, periodic strap replacement forms a natural part of conscious ownership, not a defect.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only