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Oris · TT1

Strap for Oris TT1 01 674 7659 4163-07 8 25 10

The TT1 Chronograph Stainless Steel / Grey takes 25 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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  • 12-month warranty on manufacturing defects
  • Hand-stitched in Milan

Lug width

25mm
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Lug width25 mm
Case diameter45 mm
Reference01 674 7659 4163-07 8 25 10
FamilyTT1
MovementOris caliber Oris 674 Hours, Minutes, Small seconds | Date | Chronograph
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Standard spring bar · length 25 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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TT1 Chronograph Stainless Steel / Grey — watch

What length do I need?

Measure your wrist with a tailor's tape or a piece of string, comfortably snug.

Wrist circumferenceLength (long side / short side)
15.0–16.4 cm120 / 70 mm
16.5–17.8 cm125 / 75 mm
17.9–19.0 cm130 / 80 mm
19.1–20.3 cm135 / 85 mm
20.4–21.6 cm140 / 85 mm
21.7–22.9 cm145 / 90 mm

The ready-to-wear strap is 115 × 75 mm. For a smaller or larger wrist I make it in the right length: order your length.

What I'm asked about the Oris TT1 01 674 7659 4163-07 8 25 10

What strap size does the Oris TT1 01 674 7659 4163-07 8 25 10 take?

The Oris TT1 01 674 7659 4163-07 8 25 10 needs 25 mm between the lugs. It's the size I've been fitting on it for years.

Can the strap on the Oris TT1 01 674 7659 4163-07 8 25 10 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Oris TT1 01 674 7659 4163-07 8 25 10?

Yes, in 25 mm leather. On a 45 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the Oris TT1 01 674 7659 4163-07 8 25 10?

A 25 mm box calf. I don't keep this size ready in the catalogue: I make it to measure. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

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

The atelier's website: casatimilano.com

Updated on · by Antonio Zichichi