Oris · Tonneau

Strap for Tonneau Worldtimer Stainless Steel / Silver

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
Reference01 690 7540 4061-07 5 20 42FC
FamilyTonneau
MovementOris caliber Oris 690 hours, minutes, Additional 12 hours Hand (adjustable), day / Night Indication, small seconds | date
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 Tonneau 01 690 7540 4061-07 5 20 42FC

Selected for the 20 mm lug width

All 20 mm straps →

The Tonneau 01 690 7540 4061-07 5 20 42FC, seen from the bench

The Oris Tonneau Worldtimer features an asymmetrical stainless steel case measuring 38.50 mm with a distinctive vertical dial. It is powered by the Oris caliber 690 manual-winding movement, offering 48 hours of power reserve and a beating rate of 28,800 vibrations per hour, with a day/night indicator and date window. This reference model 01 690 7540 4061-07 5 20 42FC has a 20 mm lug width. The stainless steel construction ensures durability for daily wear while maintaining legibility.

Frequently asked questions

What is the exact lug width of the Oris Tonneau 01 690 7540 4061-07 5 20 42FC?

The Tonneau's lug width is exactly 20 mm, measured pin-to-pin and excluding the depth of the attachment pins. This dimension is not a market standard, but rather a deliberate design choice consistent with the proportions of the 38.50 mm case.

Which strap material is best suited for the Oris Tonneau 01 690 7540 4061-07 5 20 42FC?

For the Tonneau, crocodile leather in natural or dyed finishes provides visual authority, shell cordovan offers a dynamic patina that evolves over time, vegetable-tanned calf ensures sustainability and honest aging, NATO straps in canvas provide versatility, and vulcanized rubber suits intense daily wear. Your choice reflects both intended use and desired aesthetic tone.

How do I change the strap on the Oris Tonneau without damaging the case?

Use a spring bar tool or small flathead screwdriver to gently prise the pin from its seat. Remove the worn strap and position the new one, ensuring the pins are perfectly aligned in the lugs. Verify stability before wearing the watch.

Are there aftermarket straps compatible with this lug width?

Yes, MilanoStraps offers a comprehensive collection of 20 mm compatible straps for the Tonneau: natural leather, alligator, shell cordovan, NATO, and rubber. All are customisable online and available for rapid shipment.

What is the average lifespan of a leather strap on the Tonneau?

An artisanal leather strap, subjected to regular maintenance (gentle cleaning, annual conditioning with natural balm), maintains structural integrity for 3–5 years. Durability depends on usage intensity, climate, and leather type: shell cordovan and crocodile age better than more fragile leathers.

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