Oris · Artelier

Strap for Artelier Complication 40 Stainless Steel / Silver / Bracelet

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

Lug width21 mm
Case diameter40 mm
Reference01 781 7729 4031-07 8 21 88
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 4031-07 8 21 88

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Artelier 01 781 7729 4031-07 8 21 88, seen from the bench

The Oris Artelier 01 781 7729 4031-07 8 21 88 is a 40mm stainless steel watch with a satin finish case and transparent caseback revealing the automatic Oris 781 caliber movement. It features date, day, moonphase, and independent 24-hour subdial complications with chronometer certification. The 21mm lug width requires specific non-universal straps. Water resistance is rated at 50 meters.

Frequently asked questions

What is the lug width of the Oris Artelier 01 781 7729 4031-07 8 21 88?

The lug width is 21mm, a specific measurement for this model that requires dedicated straps. It is not a universal standard and does not correspond to industry-standard 20mm or 22mm widths. Measure it using a digital calliper positioned between the two horizontal pins that anchor the strap to the case lugs.

Which strap should I choose for the Oris Artelier 01 781 7729 4031-07 8 21 88?

It depends on your context. Alligator with vegetable tanning amplifies formal elegance through its regular grain. Shell cordovan, with natural density and typical shoulder movement, is the supreme choice. Structured calf leather offers pronounced texture and daily versatility. For sporty environments, NATO and rubber maintain authority without sacrificing practicality.

How do I change the strap on my Oris Artelier 01 781 7729 4031-07 8 21 88?

Place your watch on a soft surface. Locate the horizontal pins at both ends of the case (one per lug). Use a spring bar tool or a thin needle to compress the pin, carefully extracting it downward. Repeat for the opposite lug. Insert the new strap by aligning the holes with the pins, then release.

Can I mount an aftermarket compatible strap on this model?

Absolutely. Any strap with 21mm lug width is mechanically compatible. Artisanal straps from milanostraps.it are custom-made for this width, guaranteeing perfect fit, certified finishes, and choice of materials (alligator, shell cordovan, calf, NATO, rubber) that enhance the case proportions.

How long does a leather strap last on a daily-worn watch?

A premium leather strap (alligator, shell cordovan, calf) typically lasts 3-5 years with intensive daily use, depending on sun exposure, humidity, and perspiration. Vegetable tanning ages more elegantly than synthetic finishes. Structured rubber offers superior durability (5-7 years) with less aesthetic patina. Regular maintenance with specific balms significantly extends service life.

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