Oris · TT1

Strap for TT1 Chronograph Stainless Steel - Rubber / Black / Rubber

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width24 mm
Case diameter43 mm
Reference01 674 7521 4464-07 4 24 14
FamilyTT1
MovementOris caliber Oris 674 hours, minutes, small seconds | date | Chronograph
CaseCaucciù, Stainless 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 TT1 01 674 7521 4464-07 4 24 14

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The TT1 01 674 7521 4464-07 4 24 14, seen from the bench

The Oris TT1 is a sporty chronograph powered by the Oris 674 automatic caliber with functions of hours, minutes, small seconds, date and chronograph. The model features 24mm lugs and is characterized by a performance-oriented design. The reference 01 674 7521 4464-07 4 24 14 identifies this specific configuration of the TT1 collection.

Frequently asked questions

What is the exact lug width of the Oris TT1 01 674 7521 4464-07 4 24 14?

The lug width of the Oris TT1 is 24mm. This measurement refers to the distance between the two lugs protruding from the case. All 24mm straps are compatible with this model, provided they meet standard lug construction specifications and show no excessive play.

Which type of strap is best suited for the Oris TT1 01 674 7521 4464-07 4?

The Oris TT1 is a racing chronograph and responds well to straps in thick Tuscan vegetable-tanned leather, satin calf or technical rubber. These materials maintain the aesthetic and functional coherence of the model. NATO straps in ballistic nylon are the most versatile sports alternative. Avoid glossy leathers or polished finishes that contradict the utilitarian character of the model.

How do I correctly change the strap on an Oris TT1?

Strap replacement requires a spring bar remover tool or thin, flat instrument. Position the tool under the lug and push gently until the internal spring retracts, freeing the lug pin. Repeat on both sides. To install the new strap, align the lug holes with the case lugs and press until the spring engages with a small click. Avoid forcing excessively to prevent damage to the pins.

Can I use aftermarket straps on this Oris TT1?

Yes, the Oris TT1 01 674 7521 4464-07 4 accepts any 24mm strap of solid construction quality. Aftermarket artisanal straps in Tuscan leather, shell cordovan or technical rubber often offer superior aesthetic and tactile rendering compared to OEM straps. Verify that lug thickness is proportionate (1.4–1.6mm for leathers) and that attachment holes are precise to avoid play.

How long does a leather strap last on a sports watch like the TT1?

A thick, vegetable-tanned leather strap on a wristwatch that registers movement and wear like the Oris TT1 typically lasts 3–5 years under normal use. Factors such as perspiration exposure, humidity, thermal variations and mechanical stress accelerate ageing. Quality Tuscan leathers develop a dark patina that will mask superficial microfractures. Technical rubber, conversely, maintains consistent performance for 5–8 years, but shows visible signs of 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