Vacheron Constantin · Harmony
Strap for Vacheron Constantin Harmony 5400S/000P-B057
The Harmony Split-Seconds Ultra Thin takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
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- Ships in 1–3 working days
- Worldwide shipping
- 30-day returns
- 12-month warranty on manufacturing defects
- Hand-stitched in Milan
Lug width

Your watch with our straps









Alligator and crocodile, Black
Black Nubuck Alligator Strap with Hand-Stitched Tone-on-Tone Stitching
€195
★ 5 · 2
1 / 24
Real photos of the strap and the case. No generated images.
What length do I need?
Measure your wrist with a tailor's tape or a piece of string, comfortably snug.
| Wrist circumference | Length (long side / short side) |
|---|---|
| 15.0–16.4 cm | 120 / 70 mm |
| 16.5–17.8 cm | 125 / 75 mm |
| 17.9–19.0 cm | 130 / 80 mm |
| 19.1–20.3 cm | 135 / 85 mm |
| 20.4–21.6 cm | 140 / 85 mm |
| 21.7–22.9 cm | 145 / 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 Vacheron Constantin Harmony 5400S/000P-B057
What strap size does the Vacheron Constantin Harmony 5400S/000P-B057 take?
The Vacheron Constantin Harmony 5400S/000P-B057 needs 22 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Vacheron Constantin Harmony 5400S/000P-B057 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 Vacheron Constantin Harmony 5400S/000P-B057?
Yes, in 22 mm leather. On a 42 mm dress watch alligator is the natural choice: thin, elegant, what it was born for.
Which strap do you recommend for the Vacheron Constantin Harmony 5400S/000P-B057?
A thin 22 mm alligator. You'll find it ready in the 22 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
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For changing the strap
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only
The atelier's website: casatimilano.com
