February 22, 2021

TUDOR Pelagos Ref. 25600TN

Tudor Pelagos - Ref. 25600tn 0001 - Mamic 1970

A magnificent example of a tool watch and symbol of adventure, the Pelagos is one of the most complete traditional mechanical divers’ watches available today.


The history of the TUDOR divers’ watch is closely tied to its intensive use by professionals in underwater work, particularly by major navies throughout the world. The brand’s submersible products are genuine tools, which have evolved over the years to take into account the comments of these intensive users. When the Pelagos model was developed, it was with this heritage in mind and based on numerous tests carried out in real conditions all over the world – particularly on Lake Geneva, close to the TUDOR headquarters – that its characteristics specific to extreme diving were established. TUDOR developed Pelagos LHD watch for left-handed divers featuring a winding stem positioned to the left of the case so that the watch can be worn on the right wrist.

TUDOR Pelagos is watch with specific characteristics for extreme diving.

TUDOR Pelagos Ref. 25600TN © TUDOR


The hands of the Pelagos, particularly the hour hand with its characteristic square tip, allow the wearer to distinguish it from the minute hand, at a glance. Known in collectors’ circles as “Snowflake”, this feature is emblematic of TUDOR divers’ watches from 1969 onwards.

TUDOR Pelagos has characteristic angular hands, known as “Snowflake”.

TUDOR Pelagos Ref. 25600TN © TUDOR


Essential characteristic of a good diving instrument is its readability. Several solutions have been adopted on the Pelagos model in order to optimise this. Its dial presents generously-sized square hour markers, complete with a large quantity of luminous material, a guarantee of greater effectiveness that provides excellent contrast. The luminescence is blue, the last colour on the spectrum to be discernible at great depths. With the same goal for optimum readability, the ceramic disc of its titanium unidirectional rotating bezel features luminous markers that allow for all information to be read even in conditions of extremely low visibility.

The ceramic disc of the titanium unidirectional rotating bezel features luminous markers that allow for all information to be read even in extreme conditions of low visibility.

TUDOR Pelagos Ref. 25600TN © TUDOR


The Pelagos stands out with its titanium bracelet featuring a steel folding clasp with a unique auto-adjustable spring mechanism developed and patented by TUDOR. This technical system allows the bracelet to be adjusted during the dive, contracting when the combination is compressed at greater depths, and expanding when the pressure decreases again during the diver’s return to the surface. An additional rubber strap is also provided, equipped with an extension system that makes it easily adjustable for all diving conditions.

Additional rubber strap with buckle and extra extension piece supplied with TUDOR Pelagos watch.


TUDOR Pelagos Ref. 25600TN has substantial waterproofness, guaranteed to a depth of 500 metres and is equipped with a helium escape valve, an essential device for preserving the watch during so-called “saturation” dives. This technique consists of saturating divers’ organisms with a gaseous blend of helium and oxygen, allowing them to alternate periods of undersea activity with rest periods in the chamber, and therefore avoid very long decompression phases for the entire duration of their mission. As the helium atom is the smallest gas particle in existence, after a certain amount of time it is able to penetrate the interior of the watch despite its waterproofness. The helium escape valve therefore allows the gas to escape freely from the watch without damaging it during the long decompression stage in the chamber at the end of the mission. The helium escape valve accounts for this overpressure, and therefore any watch damage is avoided.

The TUDOR Pelagos is guaranteed to a depth of 500 metres and is equipped with a helium escape valve.

TUDOR Pelagos Ref. 25600TN © TUDOR


The Pelagos is powered with the new TUDOR Manufacture calibre MT5612 movement, providing impressive autonomy. Its power reserve of approximately 70 hours means that its wearer can, for example, take off the watch on Friday evening and put it on again on Monday morning without having to wind it. In addition to the hour, minute and central second functions, it provides an instant date display visible through an aperture positioned at 3 o’clock.

Calibre MT5612 offers a power reserve of approximately 70 hours.

TUDOR Manufacture Calibre MT5612 - Mamic 1970
Calibre MT5612 © TUDOR


The TUDOR collection was developed according to two main cornerstones, heritage and technology. The watches it encompasses present a subtle alchemy of references to the brand’s history and modernity, masterfully measured according to the cornerstone to which they belong. In this spirit, and always with an experimental dimension in terms of materials and innovation, the technological cornerstone that forms the sporty lines of North Flag, Pelagos and Fastrider presents a shared aesthetic language, the most representative feature of which is the entirely matt finish. Brushed middle cases, sandblasted details, matt colours: this choice provides a reading of the object through contrasting volumes rather than through plays of light. This is the language of plastic as opposed to a decorative approach, whose desired effect is the reinforcement of the functional and technological feel.


Tudor Corner at Mamic 1970

Official Tudor Retailer

Boutique Mamić in Zagreb is a proud member of the global network of official Tudor retailers who are allowed to sell and maintain Rolex watches. We confirm the authenticity of your new Tudor watch and support a five-year international warranty with the necessary skills, technical experience and special equipment.

Discover more and visit us at our Tudor showroom in Zagreb. Our professional staff will be pleased to guide you through the range of Tudor collections to help you find the ideal choice for you.

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