Perrelet · Turbine

Strap for Turbine XL

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter48 mm
ReferenceA1051/9
FamilyTurbine
MovementPerrelet caliber P-331 hours, minutes, seconds
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 Turbine A1051/9

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Turbine A1051/9, seen from the bench

The Perrelet Turbine features the P-331 caliber with hour, minute and second indication. The A1051/9 model is distinguished by the visible turbine mechanism on the dial. The case houses the Perrelet automatic movement with basic time-reading functions.

Frequently asked questions

What is the exact lug width of the Perrelet Turbine A1051/9?

The lug width of the Perrelet Turbine A1051/9 is 22mm. This dimension refers to the width of the strap at the attachment points to the case lugs. Milano Straps' artisanal production tolerance allows ±0.2mm to ensure flawless fit. It is crucial to verify that the purchased strap has been measured according to international standards, with measurement taken at the point of maximum contact with the case lugs, not on the buckle or strap body itself.

Which type of strap is most suitable for the Perrelet Turbine A1051/9?

The Perrelet Turbine A1051/9, with its 48mm steel case and audacious geometric design, pairs ideally with straps in alligator with vegetable tanning or premium calf leather. Alligator amplifies the contrast between its scaled texture and the case's smooth steel finish, whilst calf allows natural patina development over time. For more dynamic or sporting use, we recommend robust NATO straps or FKM rubber, materials that reflect the model's technical aesthetic. Milano Straps supplies options with stainless steel deployante buckles that perfectly coordinate the overall presentation.

How does one change the strap on a Perrelet Turbine A1051/9?

Changing the strap on a Perrelet Turbine A1051/9 is accomplished by removing the attachment pins linking the strap to the case lugs. You will require a dedicated tool: a pin remover or small watchmaker's hammer. Position the remover's tip beneath the pin on the case's interior side and gently push upward until detachment occurs. Repeat for all pins, taking care not to scratch the case. For reinstallation, align the new strap's holes with the lugs and insert the pins from top downward, securing them with light pressure until the locking click is felt. Casati Milano offers professional replacement services by appointment, guaranteeing precision and safety.

Is an aftermarket strap from another brand compatible with the Perrelet Turbine A1051/9?

An aftermarket strap is compatible with the Perrelet Turbine A1051/9 only if it precisely respects the 22mm lug width and presents a base curve corresponding to this case's specific profile. Verifying nominal width alone is insufficient: the strap must fit without lateral play or excessive pressure. Milano Straps provides artisanal 22mm straps engineered to this model's exact specifications, with certified pin diameter and length. Lower-quality straps, despite nominally being 22mm, may exhibit construction tolerances causing slippage or binding during changes, potentially damaging the case lugs.

What is the estimated lifespan of a leather strap on the Perrelet Turbine A1051/9?

A leather strap's lifespan depends on usage intensity, climatic conditions, and the tanning method applied. A premium calf strap with vegetable tanning, used daily with care, maintains functional efficiency for 3-5 years, after which the leather typically loses elasticity whilst retaining acceptable aesthetic appeal. An artisanal alligator strap, being less prone to mechanical fatigue due to the leather's inherent structure, can last 5-7 years. Vegetable-tanned leather straps develop progressive patina, increasing their visual value over time. Milano Straps provides assistance renewing worn straps, recycling original pins and buckles where possible, reducing complete replacement costs.

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