Oris · Artelier

Strap for Artelier Complication 40 Stainless Steel / Silver

The Artelier Complication 40 Stainless Steel / Silver takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width21 mm
Case diameter40 mm
Reference01 781 7729 4051-07 5 21 66FC
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 7729 4051-07 5 21 66FC

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Artelier 01 781 7729 4051-07 5 21 66FC, seen from the bench

The Oris Artelier reference 01 781 7729 4051-07 5 21 66FC features the Oris 781 caliber with hour, minute, second and adjustable GMT hand indications. The movement includes complications for date, day of the week and moon phases. The case has 21mm lug width for the strap.

Frequently asked questions

What is the lug width of the Oris Artelier 01 781 7729 4051-07 5 21 66FC?

The lug width of this model is precisely 21mm. This is the distance between the lugs of the case, where the spring bars of the strap anchor. Always verify this measurement before purchasing a compatible strap, as an error would result in incorrect fit and potential damage to the spring bars.

What is the best strap for the Oris Artelier 01 781 7729 4051-07 5 21 66FC?

The ideal strap depends on intended use: for formal contexts, alligator leather with vegetable tanning is recommended, as it develops natural patina over time. For daily versatility, smooth vegetable-tanned calf offers dimensional stability. For durability, vegetable-tanned shell cordovan guarantees superior structural rigidity. For casual wear, a high-density cotton NATO strap is minimalist and functional.

How do I change the strap on the Oris Artelier 01 781 7729 4051-07 5 21 66FC?

The strap is secured by spring bars located at the extremities of the lugs. Use a dedicated strap removal tool: insert the tip into the lateral slot of the spring bar, pressing gently downward to release the spring. Remove the old strap and insert the new one, ensuring the spring bars lock completely in the new strap. Never force the bars: smooth movement indicates correct insertion.

Can I use aftermarket straps compatible with the Oris Artelier 01 781 7729 4051-07 5 21 66FC?

Yes, provided the lug width is 21mm. High-quality artisanal aftermarket straps—vegetable-tanned leather, natural vulcanised rubber—often offer superior material and construction qualities compared to OEM straps. Verify that the strap has standard spring bars and that the width matches exactly 21mm to ensure structural compatibility.

What is the average lifespan of a leather strap for this watch?

A high-quality artisanal leather strap lasts 3-5 years under moderate daily wear. Longevity depends on: frequency of wear, moisture exposure, maintenance (regular cleaning with damp cloths, occasional natural balm application). Vegetable-tanned leather ages better, developing patina. Natural vulcanised rubber straps guarantee 5-7 years. It is advisable to own 2-3 straps in rotation to extend the life of each.

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

The atelier's website: casatimilano.com