Patek Philippe · Grand Complications

Strap for Patek Philippe Grand Complications 3990P-XX1

The Perpetual Calendar Chronograph 3990 Platinum / Slate takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

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Lug width19 mm
Case diameter36 mm
Reference3990P-XX1
FamilyGrand Complications
MovementPatek Philippe caliber CH 27-70 Q Hours, Minutes, Small seconds, Day / Night Indication | Date, Day, Leap year, Month, Perpetual calendar | Chronograph, Column wheel
Year1995 - 2005
CasePlatinum

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 · industry standard, no brand part number

Perpetual Calendar Chronograph 3990 Platinum / Slate — watch

What I'm asked about the Patek Philippe Grand Complications 3990P-XX1

What strap size does the Patek Philippe Grand Complications 3990P-XX1 take?

The Patek Philippe Grand Complications 3990P-XX1 needs 19 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Patek Philippe Grand Complications 3990P-XX1 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 3990P-XX1?

Yes, in 19 mm leather. On a 36 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 3990P-XX1?

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