anerai’s origins lie in creating essential tools for military operations, where reliability and self-sufficiency were paramount, and extended power reserve has been a key element of the brand’s identity since the mid-1950s, when its models started running for eight days on a single wind. The Luminor 31 Giorni PAM01631, with a 44mm Goldtech™ case featuring Panerai’s patented polarized date disc (visible solely through the 3 o’clock window), builds upon this technical foundation, providing an extraordinary 31-day power reserve.

Comprising 276 components and 25 jewels, the month-long power autonomy is achieved through this sophisticated system of four barrels, housing a combined 3.3 metres of mainsprings. It allows the watch to run continuously for 31 days with just 128 crown turns, eliminating the need for specialised winding tools.

The patent-pending Torque Limiter system is a central innovation: it intelligently optimises the watch’s performance by selecting an ideal 31-day operational window from a potential 36-day power reserve. By cutting the top and the bottom of the torque barrel, the movement delivers enhanced chronometry, ensuring the watch remains consistent throughout its 31 days of operation. After 31 days, the movement automatically halts, even with remaining power reserve, a deliberate design choice that further protects the intricate mechanism and preserves its long-term performance.

Price: CHF 79,700 (limited edition of 200 pieces)

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