The Lumis version of the DAVOSA Argonautic has been part of the popular Argonautic range since 2013. The watch boasts borosilicate glass tubes filled with a mix of gaseous tritium that are positioned on the hands and hour markings. These ensure sustained luminosity without any drop in intensity – even in complete darkness, without an external energy source. This makes the Lumis models particularly suited for use in very poor visibility, both in and above water.
The new Argonautic Lumis T25 model also possesses this characteristic feature. However, the following details have been remodelled in comparison to its predecessor:-
- The new model features steel indices with a finely satined surface for the hour markings. The indices provide custom mounts for the gaseous tritium light sources that are embedded in a special shockproof gel.
- The inner dial zone has a guilloché pattern of abstract waves that reference how the watch is designed to be used in water.
- The seconds hand is easy to read in the dark thanks to a luminous dot of BGW09 SuperLumiNova.
- The date window has been rendered more subtle with white figures set against a black background.
- A high-tech ceramic bezel rises conically between the stainless steel bezel and inner glass rim; the luminous dot of BGW09 SuperLumiNova in the centre of the top triangle provides additional orientation.
- The helium valve at 10 o’clock is clearly marked with the sign for helium.
The new Argonautic Lumis T25 from Swiss watchmaker DAVOSA embodies a professional divers’ watch with a helium safety valve, cutting-edge luminous properties, a high-tech ceramic bezel inlay and subtle colour accents. This robust divers’ watch is now available to purchase from selected watch retailers starting from 858 Euros.
Tritium is a colourless gas otherwise known as extra-heavy hydrogen. The name originates from the Greek word ‘tritos’ meaning third, and refers to the three components of the atom (3H). Tritium has been used for decades in all sorts of applications where constant, independent and long-lasting light sources are essential.
In the past, luminous tritium was applied directly to the dial. Today’s watchmakers are more careful and fill the gas into fine tubes made from borosilicate glass, a highly resilient and ISO certified glass that is used in chemical engineering. These Gaseous Tritium Light Sources (or GTLS) are not only exceptionally safe; they also guarantee the watch wearer at least ten years’ constant luminosity.
Model: DAVOSA Argonautic Lumis T25
Reference: 161.576.10 (white), 161.576.40 (blue), 161.576.60 (orange) with solid metal strap; 161.580.10 (white), 161.580.40 (blue), 161.580.60 (orange) with woven metal strap
Stainless steel case (316L)
Resilient, high-tech ceramic bezel
Diameter 43 mm, height 13.8 mm, lug width 22 mm
Screw-down steel back
Manual, screwed helium safety valve
Single-sided, anti-reflective sapphire crystal
Water resistance: 30 atm/300 meters
Swiss automatic movement DAV 3021 (based on Sellita SW200)
Solid metal strap with folding buckle and safety bar; woven metal strap with folding buckle and safety bar
Retails from 858 Euros