Patek Philippe · Nautilus
Strap for Patek Philippe Nautilus 5726A
The Patek Philippe Nautilus 5726A 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

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 | 110 / 70 mm |
| 16.5–17.8 cm | 115 / 75 mm |
| 17.9–19.0 cm | 120 / 80 mm |
| 19.1–20.4 cm | 125 / 80 mm |
| 20.5–21.6 cm | 130 / 85 mm |
| 21.7–22.9 cm | 135 / 85 mm |
| over 22.9 cm | on request |
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 Patek Philippe Nautilus 5726A
What strap size does the Patek Philippe Nautilus 5726A take?
The Patek Philippe Nautilus 5726A needs 25 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Patek Philippe Nautilus 5726A 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 Patek Philippe Nautilus 5726A?
Yes, in 25 mm leather, as long as you don't wear it in the water: leather doesn't like the sea or the pool. For days in the water, rubber. On a 40 mm diver I go for a full-thickness strap, not a thin one. I don't keep rubber ready in 25 mm: write to me and I'll make it.
Which strap do you recommend for the Patek Philippe Nautilus 5726A?
Rubber if you wear it in the water; otherwise a 25 mm calf strap, full thickness. 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
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
