eaturing grade 2 titanium, luminescent ceramic composite monobloc hour markers, a rapid adjustment system for the clasp and a diver’s extension, the Pelagos 39 model combines Tudor’s professional dive watch heritage with the versatility of a 39-millimetre case and the striking radiance of sunray satin finishes on its bezel and dial. The result is a sports watch that boasts both cutting-edge watchmaking technology and a chic aesthetic, as at ease in the city as on the shore.

The Pelagos 39 model joins the Tudor family of technical divers’ watches, with a versatile, complementary design. While the Pelagos, Pelagos LHD and Pelagos FXD models perpetuate a purely technical aquatic heritage, offering functions specific to highly specialised and relatively niche professional dives, Pelagos 39 is a compact and versatile, traditional mechanical divers’ watch, with a touch of elegance created by the shine of the sunray satin finishes on its dial and the insert on the bezel.

The aesthetic balance of the Pelagos 39 model is achieved through an entirely satin-brushed case in line with this Tudor product family. This artfully contrasts with the radiance of its bezel insert, made of black ceramic with an enhanced sunray satin finish, featuring a graduated scale in white luminous material. The diameter of the bezel slightly exceeds the middle case for maximum grip.

The applied hour markers on the dial are made of monobloc luminescent ceramic composite, a feature that enhances the technical aesthetics, whilst considerably increasing the luminous surface of the hour markers. The dial is made up of two main elements, a sunray satin finish flat disc whose subtle shine contrasts with the matt finish of the 45° conical bead-blasted flange. Last, but not least, the name Pelagos stands out in glossy cherry red at 6 o’clock, disrupting the model’s two-tone colour palette.

The Pelagos 39 model is equipped with Manufacture Calibre MT5400. Its construction has been designed to ensure robustness, longevity, reliability and precision due to its variable inertia balance, which is held in place by a sturdy traversing bridge with two points of fixation. Thanks to this balance and the non-magnetic silicon balance spring, Manufacture Calibre MT5400 has been certified as a chronometer by the Swiss Official Chronometer Testing Institute (COSC), with its performance going beyond the standards set by this independent institute. In fact, where COSC allows an average variation in the daily running of a watch of between -4 and +6 seconds in relation to absolute time in a single movement, Tudor insists on between -2 and +4 seconds’ variation in its running when it is completely assembled.

Another notable feature is that the power reserve of Manufacture Calibre MT5400 is “weekend-proof”, about 70 hours, which enables the wearer to take the watch off on a Friday evening and put it back on again on Monday morning without having to wind it.

The Pelagos 39 model is supplied with an entirely satin-brushed titanium bracelet that is equipped with the Tudor “T-fit” clasp for rapid length adjustment. Easy to use, requiring no tools and offering five positions, this system allows the wearer to carry out a fine, instant adjustment of the total length of the bracelet along an adjustment window of 8 millimetres. This clasp also has a 25-millimetre bracelet extension function to allow the watch to be worn over a wetsuit.

The Pelagos 39 comes with a second strap made of black rubber, with a titanium pin buckle, that attaches to the case with titanium end links. Also included is a rubber extension piece that makes it possible to lengthen the strap even further, by up to 110 millimetres.

The Tudor Pelagos line offers a variety of highly technical, mechanical divers’ watches at the forefront of this sector. Now made up of four models, this product family is the worthy heir of Tudor tool watches, adopted since the 1950s by pioneers of underwater exploration around the world. The Pelagos and Pelagos LHD models, for right-handed and left-handed divers respectively, provide an ergonomic solution that is not only tailored to most underwater environments but is specifically designed for so-called “saturation” dives thanks to the helium escape valve. The Pelagos FXD model, developed in conjunction with the French Navy’s combat swimmers, is an instrument that makes it possible to perform countdowns with ease during so-called “oxygen” dives, in which users do not descend to depths requiring decompression stops. Finally, the Pelagos 39 model forms a bridge between land and sea, meeting all the ISO standards for divers’ watches, with versatility and enhanced aesthetic touches.

The history of the Tudor divers’ watch dates back to 1954 with the launch of reference 7922. Waterproof to 100 metres (330 ft), it was the firstborn in a long line of dive watches. Affordable, robust, reliable and precise, it perfectly represented the brand’s tool watch philosophy. The seven decades following its introduction have witnessed the constant improvement of Tudor divers’ watches and them gaining acclaim from professionals in the field, including some of the world’s greatest military navies.

TECHNICAL SPECIFICATIONS

REFERENCE 25407N

CASE 39 mm grade 2 titanium case with satin finish

BEZEL Grade 2 titanium unidirectional rotating bezel with insert in sunray satin finish ceramic and luminous material

WINDING CROWN Grade 2 titanium screw-down crown, adorned with the TUDOR shield in relief

DIAL Black sunray satin finish with sandblasted flange

CRYSTAL Sapphire crystal

WATERPROOFNESS Waterproof to 200 m (660 ft)

BRACELET Titanium three-link bracelet with TUDOR “T-fit” folding clasp, safety catch and diver’s extension. Complimentary black rubber strap with pin buckle and diver’s extension included in the box

CALIBRE Manufacture Calibre MT5400 Self-winding mechanical movement with bidirectional rotor system

PRECISION Swiss Chronometer officially certified by the COSC (Official Swiss Chronometer Testing Institute)

FUNCTIONS Hours, minutes and seconds hands at the centre Stop-seconds for precise time setting

OSCILLATOR Variable inertia balance, micro-adjustment screw Non-magnetic silicon balance spring Frequency: 28,800 beats/hour (4 Hz)

TOTAL DIAMETER 30.3 mm

THICKNESS 5 mm

JEWELS 27 jewels

POWER RESERVE Approximately 70 hours