Patek Philippe · Complications

Strap for Annual Calendar 5146 Yellow Gold / Cream / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
Reference5146/1J-001
FamilyComplications
MovementPatek Philippe caliber 324 S IRM QA LU hours, minutes, seconds | date, annual calendar, day, month | moonphase | power reserve indicator
Year2010 - 2019
CaseWhite Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Complications 5146/1J-001

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Complications 5146/1J-001, seen from the bench

The Patek Philippe Complications 5146/1J-001 is a 39 mm white gold case watch powered by the caliber 324 S IRM QA LU mechanical movement. It features six independent complications including annual calendar, day, month, moonphase, and power reserve indicator. The 20 mm lug width accommodates straps compatible with this case size, and the movement provides 48 hours of power reserve.

Frequently asked questions

What is the lug width of the Patek Philippe Complications 5146/1J-001?

The lug width of the Patek Philippe Complications 5146/1J-001 is 20 millimetres. This measurement represents the standard for watches with cases between 38 and 40 millimetres, ensuring balanced proportions between the white gold case and the strap. Any strap compatible with a 20mm lug width will fit your Patek Philippe perfectly without slack or forcing.

Which strap is recommended for the Patek Philippe Complications 5146/1J-001?

For the Patek Philippe Complications 5146/1J-001 in white gold, we recommend an alligator strap in grey-tortoiseshell or black, or a calf strap with vegetable tanning in taupe or hazel tones. Shell cordovan represents a premium alternative for those seeking superior durability and structural integrity. Avoid NATO or rubber straps: white gold deserves a formal mounting that does not compete with casual materials.

How do you change the strap on a Patek Philippe Complications 5146/1J-001?

The strap on the Patek Philippe Complications is changed by extracting the spring bars that connect the strap to the case lugs. Use a dedicated spring bar tool or consult a qualified watchmaker: this operation requires precision to avoid losing the small pins. Do not attempt this yourself if you lack the proper tool, as accidental pin loss could compromise the watch's value.

Can I use an aftermarket strap with 20mm lug width on my Patek Philippe Complications?

Yes, any aftermarket strap equipped with a 20mm lug width is physically compatible with the Patek Philippe Complications 5146/1J-001. However, we recommend choosing an artisanal product of quality: premium leathers such as alligator, vegetable-tanned calf, and shell cordovan pair coherently with white gold, while inferior materials would compromise the overall image of the timepiece. A warranty against manufacturing defects ensures longevity.

How long does a leather strap last on a Patek Philippe Complications 5146/1J-001?

The lifespan of a leather strap depends on the material and usage. A quality alligator strap lasts on average 8-12 years with daily wear, vegetable-tanned calf 5-7 years, and shell cordovan over 15 years thanks to its structural rigidity. Frequent exposure to sun and humidity reduces longevity. An artisanal strap with an 18-month warranty against manufacturing defects protects you against construction flaws, but the natural wear of leather remains the wearer's responsibility.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only