Patek Philippe · Grand Complications

Strap for Tourbillon Minute Repeater Perpetual Calendar 5016 Only Watch 2015

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

Lug width20 mm
Case diameter40 mm
Reference5016A-010
FamilyGrand Complications
MovementPatek Philippe caliber R TO 27 PS QR hours, minutes, small seconds | date, day, leap year, month, perpetual calendar | moonphase | minute repeater | tourbillon escapement
Year2015 - 2015
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Grand Complications 5016A-010

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Grand Complications 5016A-010, seen from the bench

The Patek Philippe Grand Complications reference 5016A-010 features the R TO 27 PS QR caliber with a tourbillon escapement and minute repeater. The watch integrates a complete perpetual calendar with leap year indication, moon phases, and chronograph function with small seconds. The complications include hour, minute, date, day, month, and leap year display on a multi-display dial.

Frequently asked questions

What is the lug width of the Patek Philippe Grand Complications 5016A-010?

The Patek Philippe Grand Complications 5016A-010 features a lug width of 20 millimetres. This technical specification is essential for selecting a compatible strap. Measurement should be taken by calculating the distance between the inner edges of the case lugs, passing through the exact centre of the two holes where the spring bars are inserted. A common error is confusing the lug width with the total case diameter (39.50 mm in this case).

Which strap is best suited for the Patek Philippe 5016A-010?

There is no single solution, but rather several options depending on usage context and personal preference. Black alligator remains the classical choice and is universally recognised; it delivers elegance without compromise and develops natural patina over time. Shell cordovan in burgundy tones creates a sophisticated chromatic dialogue, particularly with the original blue dial. Vegetable-tanned calf leather represents a contemporary and minimalist approach. For sporty applications, a nylon NATO strap at high density or a vulcanised rubber strap maintains structural integrity without aesthetic compromises.

How do you change the strap on the Patek Philippe Grand Complications 5016A-010?

Strap replacement requires a dedicated tool (spring bar removal tool) to extract the articulation pins from the case lugs. Position the tool beneath the pin, apply gentle pressure to release it from its seat, then insert it into the new strap. It is advisable to work on a soft surface (rubber mat) to prevent accidental damage to the case. If you possess the original metal bracelet, retain it in its box: it represents a considerable value asset for any future resale. Some owners prefer to entrust this operation to a qualified watchmaker or an authorised Patek Philippe service centre, particularly if wishing to eliminate any risk.

Is an aftermarket strap compatible with the Patek Philippe 5016A-010?

Yes, any strap with a 20-millimetre lug width is technically fully compatible. The real difference lies in constructional quality and material selection. Artisanal straps (such as those from Casati Milano) guarantee conscious pelt selection, controlled manufacturing and warranty coverage against production defects. A quality aftermarket strap does not compromise the movement's integrity or the collector's value of the watch; rather, it enables the piece to be adapted to diverse usage contexts without aesthetic concessions.

How long does a leather strap last on a watch like the Patek Philippe 5016A-010?

Durability depends on frequency of wear, environmental conditions and leather quality. High-quality alligator or shell cordovan, worn regularly, maintains structural integrity for 5–7 years. The leather develops natural patina over time, a phenomenon that increases aesthetic appeal rather than constituting deterioration. Prolonged exposure to humidity, perspiration and sunlight accelerates ageing. To extend durability, it is advisable to rotate between straps (allowing the piece to rest), protect from extreme moisture and periodically apply conditioning treatments with specialist creams. Casati Milano guarantees 18 months against manufacturing defects, but true longevity depends on the wearer's conscientious maintenance.

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