Neuchâtel (Switzerland) based mechanical watch firm Krayon Sàrl has created a world premier wristwatch featuring a truly unique and ingenious horological complication that indicates sunrise and sunset times at any point on the globe.
Christened as ‘Everywhere’ this watch houses the USS calibre (Universal Sunrise Sunset) equipped with the sunrise and sunset time calculating mechanism that can be adjusted simply by the crown.
The watch dial indicates the number of day light hours on a lighter coloured circle, yellow or pink depending on the version. A darker circle symbolises night. The point at which the two circles meet corresponds to sunrise and sunset. As the seasons change, or at different locations, the number of daylight hours lengthens or shortens. A blue arrow on the edge of the dial materialises the path of the sun as it travels through the sky.
The mechanical calculator of the watch combines the five parameters that influence sunrise and sunset calculations. First longitude and latitude, which geographically define a point on Earth, then the UTC time zone, and lastly the date and month. The watch’s wearer sets each one as required to then see the precise hour at which the sun will appear and disappear, in the place of his choice and on the day he wishes.
The hands and indicators in daily use – date and time – are in blue to visually stand out for maximum legibility. Contrasting with them, the hands corresponding to the settings have a softer colour which can be white gold or pink gold, depending on the version.
Hours are read from the contour of the dial thanks to a blue arrow on a 24-hour scale, which also shows how many hours have passed since the last sunrise. Minutes are shown by a large central hand. A subsidiary dial in the upper part of the main dial displays longitude between +180° and -180°, shown by the longer of the two hands.
The shorter hand points to the UTC time zone and advances in half increments to take into account every time zone in use around the world. When required, the DST (Daylight Saving Time) indication adjusts for summer time. Two hands occupy the centre of the main dial: the one on the left covers latitude between +60° and -60° while the hand on the right shows the chosen parameter: date, latitude, longitude or UTC. A subdial in the lower portion of the dial presents date and month.
Despite combining and displaying multiple parameters, the engineers at Krayon have ensured that setting these parameters is simplicity itself. The – date, latitude, longitude and UTC – is selected using the pusher on the left side of the case, then set from the crown. The default setting is the date as this corresponds to the most frequently used function. Furthermore, adjustments can be made by turning the crown forwards or backwards, thereby protecting the mechanism against damage caused by mishandling.
The USS calibre comprises of 595 components and each of them has been designed and manufactured specifically for it. In addition to sunrise and sunset time indication, this ingenious mechanical calibre also incorporates an equation of time, a secret function that is not shown on the dial, in order to calculate the different parameters.
The USS calibre is fitted with four differentials, 84 gear assemblies and a total of 145 gear parts. Three patents have been filed to protect these inventions. Automatically wound by a white gold micro-rotor, the USS calibre delivers a 72-hour power reserve and beats at a frequency of 3 Hz.
The finishing and decoration of Everywhere are entirely by hand, in keeping with Swiss traditional haute horlogerie techniques. Two versions are proposed, both with a 42mm case size, in pink gold or in white gold, and can be fully personalised on request.
Universal Sunrise& Sunset
Total diameter: 35.40 mm
Movement height: 6.50mm
Power reserve: 72 hours
Frequency: 3 Hz
Quick setting mechanism
Automatic winding with 22k gold micro-rotor
595 components, including 85 jewels
Hours, 24-hour display
Calculation and display of sunrise and sunset times based on latitude, longitude and tine zone
White gold case
Optional baguette diamond bezel
Sapphire crystal and caseback
Case diameter: 42 mm
Total case thickness: 11.70 mm
Sapphire display discs with micro-painting
White gold dial
Sunrise and sunset times on peripheral discs
Date at 6 o’clock
Longitude and UTC at 12 o’clock
Latitude at 9 o’clock
Function indicator at 3 o’clock
Hand-stitched black alligator strap
White gold pin buckle