Oris · TT3

Strap for TT3 Day Date Titanium / Black / Rubber

Takes 28 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width28 mm
Case diameter41 mm
Reference01 635 7588 7064-07 4 28 02T
FamilyTT3
CaseTitanium

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The TT3 01 635 7588 7064-07 4 28 02T, seen from the bench

The Oris TT3 01 635 7588 7064-07 4 28 02T is a racing chronograph born in the early 2000s, featuring a monolithic titanium grade 5 case measuring 41 mm in diameter with a lug width of 28 mm. Powered by an automatic movement with 4 Hz frequency and over 38 hours power reserve, it delivers 300 metres water resistance via screw-down crown. The titanium construction resists oxidation and maintains natural gray patina without degradation over time.

Frequently asked questions

What is the lug width of the Oris TT3 01 635 7588 7064-07 4 28 02T?

The lug width is 28mm, a measurement that indicates the horizontal distance between the case lugs where the strap is inserted. This dimension is critical for compatibility: only 28mm straps fit correctly without forcing.

Which strap is best suited to the Oris TT3 01 635 7588 7064-07 4 28 02T?

The TT3 pairs beautifully with vegetable-tanned alligator straps for a formal aesthetic, military NATO straps for racing spirit, or FKM rubber for water use. Your choice depends on purpose: elegance, technical performance, or pure sportiness.

How do you change the strap on an Oris TT3?

Remove the strap using a spring bar removal tool: insert the blade into the slot beneath the lug, lever downward to release the spring, extract the old strap, and insert the new one by snapping the spring bar into the holes.

Which aftermarket straps are compatible with the Oris TT3 01 635 7588 7064-07 4 28 02T?

Any strap with 28mm lug width is compatible. We recommend specialised brands prioritising construction quality: certified vegetable-tanned leather, grade 5 FKM rubber, genuine nylon NATO webbing, titanium or watchmaking-grade stainless steel deployant buckles.

How long does a leather strap last on a watch like the TT3?

A vegetable-tanned leather strap lasts 3–5 years with daily wear, provided you keep it dry and avoid showers or immersion. FKM rubber lasts 8–10 years. Nylon NATO lasts indefinitely but tends to felt over time. Regular maintenance—cleaning and drying—significantly extends lifespan.

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