# Piaget Polo Perpetual Calendar Ultra‑Thin – A Grand‑Complication in a Sports Shell Piaget’s Polo line has long been the brand’s answer to the luxury‑sports‑watch market, and the **Polo Perpetual Calendar Ultra‑Thin** pushes that formula a step further. Housed in a 42 mm stainless‑steel case, the watch packs a genuine perpetual calendar – complete with month‑length detection, leap‑year correction and a moon‑phase display – into a movement that is, by Piaget’s own claim, one of the thinnest of its kind. Unveiled in early 2023, the model aims to deliver the gravitas of a grand‑complication while keeping the price point well below the six‑figure territory occupied by its Patek Philippe and Audemars Piguet rivals. The result is a piece that dazzles on the dial, feels solid on the wrist, but still shows the tell‑tale signs of a watch that trades some mechanical refinement for accessibility. --- ## Design & Case The **42 mm steel case** is a classic Polo silhouette – a rounded‑octagonal shape that sits comfortably between the robust sport‑watch aesthetic and a more refined dress‑watch proportion. The case thickness is not spelled out in the official specifications, but the “Ultra‑Thin” moniker is justified by the movement’s sub‑5 mm profile, which keeps the overall wrist‑fit sleek despite the relatively large diameter. Piaget chose a **dark emerald‑green dial** finished with a subtle gadroon pattern that catches the light without being overtly decorative. SuperLumiNova®‑coated indexes and hands provide a respectable glow in low light, and the dial layout follows a traditional three‑hand arrangement with the calendar windows positioned at 3, 6, 9 and 12 o’clock. What sets the dial apart is the generous size of the calendar numerals – a point repeatedly praised in early reviews – which enhances legibility without sacrificing elegance. The watch is equipped with Piaget’s **SingleTouch interchangeable strap system**. A green rubber strap with a deployant‑style folding clasp and a stainless‑steel bracelet can be swapped in seconds, thanks to a discreet latch on the case back. This system is a welcome practical touch for a model that otherwise feels very much like a high‑end sports watch. Water resistance is modest at **30 m (3 atm)**, which is typical for a complication‑heavy piece where a higher rating would demand additional sealing that could jeopardise the thinness of the movement. As a result, the Polo Perpetual Calendar Ultra‑Thin is best suited to everyday wear and occasional light exposure to water, but not to swimming or diving. --- ## Movement & Performance At the heart of the watch lies Piaget’s **Manufacture 1255P** – an ultra‑thin, automatic mechanical movement that integrates a full perpetual calendar and a moon‑phase display. The calibre is a development of Piaget’s long‑standing 1255 family, refined to a slimmer profile while retaining the same level of complication. It drives the hour, minute, and seconds hands, a date window, a month‑length indicator, a leap‑year correction wheel, and a small‑aperture moon‑phase disc. The **power reserve** is listed at 48 hours, which is respectable for a movement of this thickness. Accuracy figures have not been published by the brand, but independent owners report a typical automatic watch variance of –5 to +10 seconds per day, which is acceptable for a piece whose primary appeal is its calendar function rather than chronometric precision. Setting the calendar is where the watch shows its age. All adjustments are performed via **recessed pushers on the case side**, a traditional approach that can feel fiddly, especially when trying to set the month‑length or leap‑year indicators. Modern competitors often use crown‑based or touchscreen adjustments, so Piaget’s reliance on hidden buttons may deter some users who prefer a more intuitive interface. Despite this, the movement’s execution is solid. The perpetual calendar operates flawlessly once set, automatically accounting for the varying lengths of months and the extra day in February during leap years. The moon‑phase disc advances correctly, offering a subtle but appreciated visual cue. --- ## On the Wrist The 42 mm case sits comfortably on a wrist of average size thanks to a **lug‑to‑lug length of approximately 48 mm** and the gentle curvature of the case edges. The steel construction adds a reassuring weight without feeling cumbersome; the watch balances well, neither sliding down the wrist nor feeling overly heavy. The **interchangeable strap system** adds a layer of versatility. The rubber strap gives the watch a sporty, casual vibe, while the steel bracelet elevates it to a more formal setting. The transition between the two is smooth, and the deployment clasp on the rubber strap ensures a secure fit without the need for a traditional buckle. Comfort-wise, the watch’s thin profile means it sits relatively close to the skin, which can be a plus for those who dislike bulky watches. However, the 30 m water resistance and the recessed calendar pushers mean the wearer must be mindful of moisture and avoid excessive force when adjusting the calendar. The SuperLumiNova® treatment on the hands and indexes remains bright after prolonged exposure to low light, contributing to legibility at night. --- ## Value & Verdict Piaget positions the **Polo Perpetual Calendar Ultra‑Thin** as an “affordable” entry into the world of perpetual calendars. While the brand does not publish an official MSRP, market listings place the piece in the **$25,000–$30,000** range, considerably lower than the six‑figure prices of comparable Patek Philippe or Audemars Piguet models that boast more intricate finishing and higher water resistance. From a value perspective, the watch delivers a genuine perpetual calendar – a complication that most brands reserve for their top‑tier pieces – in a sporty, wearable case. The dial’s color and the generous calendar numerals give it a distinctive personality, and the SingleTouch strap system adds practical modernity. The drawbacks are equally clear. The **recessed pushers** make calendar adjustments less user‑friendly, and the modest water resistance limits its suitability for active, water‑related pursuits. Additionally, while the movement is thin and reliable, it does not reach the mechanical refinement of its higher‑priced rivals, which often feature hand‑finished components, higher jewel counts, and longer power reserves. **Verdict:** For collectors who want a perpetual calendar without breaking the bank, and who appreciate Piaget’s heritage of ultra‑thin movements, the Polo Perpetual Calendar Ultra‑Thin is a compelling choice. It shines brightest on the wrist, where its elegant green dial and interchangeable straps make a statement. Those who prioritize mechanical perfection, seamless calendar adjustment, or higher water resistance may look elsewhere, but for most luxury‑sports enthusiasts, Piaget has struck a respectable balance between complication, design, and price.