Patek Philippe · Grand Complications

Strap for Patek Philippe Grand Complications 1518A

The Perpetual Calendar Chronograph 1518 Stainless Steel takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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  • Hand-stitched in Milan
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Lug width19 mm
Case diameter35 mm
Reference1518A
FamilyGrand Complications
MovementPatek Philippe caliber 13'''130 Q Hours, Minutes, Small seconds | Date, Day, Month, Perpetual calendar | Chronograph, Column wheel
Year1941 - 1954
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 19 mm · Ø 1.8 mm double flange

Perpetual Calendar Chronograph 1518 Stainless Steel — 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 cm110 / 70 mm
16.5–17.8 cm115 / 75 mm
17.9–19.0 cm120 / 80 mm
19.1–20.4 cm125 / 80 mm
20.5–21.6 cm130 / 85 mm
21.7–22.9 cm135 / 85 mm
over 22.9 cmon 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 Grand Complications 1518A

What strap size does the Patek Philippe Grand Complications 1518A take?

The Patek Philippe Grand Complications 1518A needs 19 mm between the lugs. It's the size I've been fitting on it for years.

Can the strap on the Patek Philippe Grand Complications 1518A 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 Grand Complications 1518A?

Yes, in 19 mm leather. On a 35 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the Patek Philippe Grand Complications 1518A?

A 19 mm box calf. You'll find it ready in the 19 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

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

Updated on · by Antonio Zichichi