Oris · Artelier

Strap for Artelier Skeleton 40 Stainless Steel

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 734 7721 4051-07 5 21 33FC
FamilyArtelier
MovementOris caliber Oris 734 hours, minutes, seconds | skeleton
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 01 734 7721 4051-07 5 21 33FC

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Artelier 01 734 7721 4051-07 5 21 33FC, seen from the bench

The Oris Artelier 01 734 7721 4051-07 5 21 33FC embodies Swiss manufacturing tradition with essential, geometric design. Crafted by the Holzingen manufacture since 1904, this 40mm stainless steel model features a clear dial, transparent caseback exposing the Oris 734 manual-wind skeleton movement, and 50m water resistance. The 21mm lug width is a particular specification derived from the case proportions and lug geometry.

Frequently asked questions

What is the lug width of the Oris Artelier 01 734 7721 4051-07 5 21 33FC?

The lug width is 21 millimetres, a specific dimension of this model. Measure by positioning a digital calliper between the bottom of the two horizontal lugs at the innermost parallel point where the strap keeper inserts. This is not a common standard in serial catalogues, so the strap must be precisely dimensioned at 21mm to fit without play.

Which strap is best suited for the Oris Artelier 01 734 7721 4051-07 5 21 33FC?

A vegetable-tanned calf leather strap conveys formal elegance and natural ageing, or a black alligator for absolute authority. For sporting use, a NATO in grey talpa or navy blue offers casual versatility. If you intend diving or saltwater use, vulcanised FKM rubber guarantees instant drying resistance and moisture inertia.

How do you change the strap on the Oris Artelier 01 734 7721 4051-07 5 21 33FC?

Use a spring bar tool to gently push inward each cylindrical pin that fixes the strap to the lugs. With the pin lifted, the strap releases. Insert the new strap by aligning the holes to the pin, then re-engage the spring until a click of engagement is felt. Ensure the strap is centred perpendicularly to the case.

Can I use an aftermarket 20mm or 22mm strap instead of 21mm?

No. A 20mm strap would be unstable, oscillating inside the lug; a 22mm would not fit at all. The 21mm dimension is binding for this model. The keeper must adhere perfectly to the lug cylinder to ensure stability over time and prevent asymmetric wear.

How long does a vegetable-tanned leather strap last on the Oris Artelier?

With ordinary maintenance (cleaning every 2-3 months, drying after perspiration), a vegetable-tanned calf strap has a lifespan of 3-5 years before replacement is needed. Alligator resists 5-8 years if protected from stagnant water. Canvas NATO straps last 4-6 years. FKM rubber maintains elasticity 5-7 years, then tends toward brittleness at flexion points.

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