Patek Philippe · Annual Calendar
Strap for Patek Philippe Annual Calendar 5396R-016
The Patek Philippe Annual Calendar 5396R-016 takes 21 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

Straps for the Annual Calendar 5396R-016
Selected for the 21 mm lug width · workshop selection
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 Annual Calendar 5396R-016
What strap size does the Patek Philippe Annual Calendar 5396R-016 take?
The Patek Philippe Annual Calendar 5396R-016 needs 21 mm between the lugs. It's the size I've been fitting on it for years.
Can the strap on the Patek Philippe Annual Calendar 5396R-016 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 Annual Calendar 5396R-016?
Yes, in 21 mm leather. On a 38.5 mm case a calf strap works every day; if you want something more, alligator.
Which strap do you recommend for the Patek Philippe Annual Calendar 5396R-016?
A 21 mm calf strap, for every day. You'll find it ready in the 21 mm collection. If you'd rather have something built on your wrist, the Casati atelier.
More Patek Philippe in 21 mm
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- Perpetual Calendar Split Seconds Chronograph 5004Grand Complications
- Perpetual Calendar Split Seconds Chronograph 5004 Platinum / White ArabicGrand Complications
- Perpetual Calendar Split Seconds Chronograph 5004P Blue Eric ClaptonGrand Complications
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





