It is the world’s first watch to measure declination, making it one of the most complete and complicated astronomical watches on the market.Â
“Master watchmaker Martin Braun has added to his string of astronomical complications with the Notos model, the fourth in a series that began with the phenomenal EOS.
In Greek mythology, Notos was the son of Eos and Astraios, making him Boreasâ€™s brother and a more than fitting member of this â€œcomplicated,â€ÂÃ‚ÂÂ mythical family.
The focus of the Notos model is to display the declination, a function that no other wristwatch has until now shown. According to G.-A. Bernerâ€™s Professional Dictionary of Horology, the declination can be thus defined: â€œIn astronomy, the angular distance between a star and the celestial equator on the horary circle of the star.â€ÂÃ‚ÂÂ This definitely sounds a little confusing, and Braun himself has a much better of way of putting it: â€œI wanted to create a display that shows which line of latitude the sun is currently found on at noon.â€ÂÃ‚ÂÂ This display is shown on the elongated cutaway found between 7 and 9 oâ€™clock by a hand that is only twice as thick as a hair, its shape designed by Martin Braun himself according to the principle of the divine rule.
â€œThe equation of time is absolutely predestined to be combined with the declination,â€ÂÃ‚ÂÂ Braun explains of his inclusion of the Boreas modelâ€™s main complication. It has, however, been made even more legible on this dial, thanks to a new control disk Braun has created, with the fan-shaped display spanning almost a third of its right-hand side. And since the equation of timeâ€™s disk already contains the current month, it was logical for Braun to include this display in the Notos as well, found here between 5 and 6 oâ€™clock.
While the dialsâ€™ displays are embellished by blue or silver-colored applied frames of 0.3 mm (depending on the dial color), the Notosâ€™ movement is chiefly characterized by the module that Braun created for his own in-house movement (Caliber MAB 88), which years of development in Braunâ€™s ateliers have honed to the finely tuned mechanism it has now become. MAB 5, comprising 87 individual components, is 2.5 millimeters high and represents the â€œbrainâ€ÂÃ‚ÂÂ that powers the declination, equation, and month displays. Braun has also added his signature 18-karat gold rotor to the movement for both technical and aesthetic purposes.”