Unfathomable Precision: The Favre-Leuba Raider Bathy 120 MemoDepth

Favre-Leuba can look back at 281 years of brand history. The watch manufacturer is known for creating an interface of traditional watchmaking and the dynamic engineering spirit of today.
In 1968, Favre-Leuba has introduced its vision of the perfect dive watch, the Bathy. It was equipped with a depth gauge and was a milestone in mechanical instrument watches. It is a much sought-after collector’s piece today and the year 2018 marks the 50th anniversary of the Bathy. The perfect time to pave the way for a new legend – and the question, if it is possible to improve on excellence. The answer can be found in the new Raider Bathy 120 MemoDepth.

The retrofuturistic design is a deliberate nod to the original 1968 Bathy. From a technical standpoint, however, the Raider Bathy 120 MemoDepth is an entirely new creation. Its functionality and materials have not merely been improved upon – they have set a new standard. The case design is a homage to its popular predecessor and is complemented by bold, functional colors and easy-to-read hands.

The new case is crafted from titanium and, with its 48 mm diameter, guarantees perfect readability at the bigger dial.

The depth gauge in the Raider Bathy 120 MemoDepth turns on one of the established rules of watchmaking completely on its head. Never let water get inside of a watch? Quite the opposite. The new Bathy features apertures in the case back that actually invite water inside. It may sound crazy, but it isn’t: these openings are part of the depth gauge, which is hermetically separated from the movement. The concept is based on the compression of a specially designed membrane that is integrated into the case back. Water enters a separate chamber through the apertures, causing the membrane to compress as the pressure increases. A mechanical contact sensor inside the watch reacts to this compression and conveys the information via the hand of the depth gauge onto the dial.
The dive depth is displayed on a nonlinear display via a central hand on the dial. Depths up to 120 m can be measured extremely precisely. The scale for the first 30 m is finer, with two red marks at 5 and 10, where decompression stops may be necessary. The Raider Bathy 120 Memo Depth also features a mechanical depth memory (MemoDepth), which stores the maximum depth reached during a dive. The depth gauge at 3 o’clock reliably displays the value until it is reset via the screw-in pusher at 4 o’clock.

The Raider Bathy 120 MemoDepth is water-resistant up to 200m, as is the norm for a dive watch. Its optimal range of measurement is 120 m, more than double that of the original Bathy (50 m). A built-in mechanical limiter ensures that neither the pressure membrane nor the depth gauge are damaged if the wearer dives deeper that the optimal range.
Even on ambitious dives to depth where there is little light, all of the relevant information is perfectly readable. Design and features of the Favre-Leuba Raider Bathy 120 MemoDepth are inspired by the belief, that unnecessary difficulties should not get between a diver and the thrill of the dive.

Like every professional dive watch, the Raider Bathy 120 MemoDepth is fitted with an unidirectional bezel. It turns only counterclockwise so that it is only possible to accidentally move the bezel in a direction, which would subtract from the planned dive time.
The watch is powered by the FL321 hand-wound movement. It is based on the EMC 3903M caliber, which has been completely re-engineered by Favre-Leuba. It features a 65-hour power reserve and a power-reserve indicator displayed at 12 o’clock.

The Favre-Leuba Raider Bathy 120 MemoDepth is an extraordinary instrument, inspired by the original Bathy yet re-interpreted and perfected. This watch is an achievement in the development of mechanical instrument watches – and impressively stylish as well.

Die Favre-Leuba Raider Bathy 120 MemoDepth ist ein außergewöhnliches Instrument, das einen neuen Maßstab in Sachen Taucheruhren setzt und dabei ihre Impulse von der Ur-Bathy bezieht und diese neue interpretiert. Fantastisch aussehen tut sie außerdem.

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