Oris · Tonneau

Strap for Tonneau Worldtimer Stainless Steel / Black / Bracelet

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 4064-07 8 20 68
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 4064-07 8 20 68

Selected for the 20 mm lug width

All 20 mm straps →

The Tonneau 01 690 7540 4064-07 8 20 68, seen from the bench

The Oris Tonneau is powered by the Oris 690 caliber with functions of hours, minutes, 12-hour adjustable central seconds hand and day/night indication. The movement includes small seconds and date. 20mm lugs complete the technical configuration of the timepiece.

Frequently asked questions

What is the lug width of the Oris Tonneau 01 690 7540 4064-07 8 20 68?

The lug width of this model is 20 mm. This dimension is critical for strap-to-watch compatibility: it must be measured precisely using a digital calliper, calculating the internal distance between the two spring bars that anchor the strap to the watch case lugs.

Which strap is recommended for the Oris Tonneau 01 690 7540 4064-07 8 20 68?

The choice depends on intended use and desired aesthetics. For formal contexts, we recommend alligator leather with vegetable tanning or veal box leather. For versatile daily wear, a NATO strap in tight weave offers durability and practicality. For a sports-oriented style, textured FKM rubber maintains elegance without compromise.

How do I change the strap on the Oris Tonneau 01 690 7540 4064-07 8 20 68?

The strap is replaced by extracting the spring bars from the watch case lugs using a dedicated tool or small screwdriver. Position the bar under the spring and lift gently until the strap is freed. For installation, insert the new strap and reposition the spring bar under the spring, ensuring it is securely fastened.

Is an aftermarket strap compatible with the Oris Tonneau 01 690 7540 4064-07 8 20 68?

Yes, any strap with a 20 mm lug width is compatible with this model. Compatibility is guaranteed by the lug width dimension: the 20 mm bars will insert correctly into the watch case lugs. We recommend verifying construction quality and finishing to ensure aesthetic harmony.

How long does a leather strap last on the Oris Tonneau 01 690 7540 4064-07 8 20 68?

The lifespan of a leather strap depends on material quality, daily use, and maintenance. A vegetable-tanned alligator strap can last 5–7 years with regular use and proper care (periodic cleaning, moisture protection). Higher-grade veal offers similar durability. The patina that develops over time testifies to material authenticity and noble wear.

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