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NEWS: ochs und junior present the 'day/night', your (very own) personal (length of the) day dial!

 

The timepieces (how apt a term here!) from Lucerne's ochs und junior team are always refreshing unconventional in both their indications and particularly the mechanisms that drive them. Welcome to their newest piece, the day/night, a personalised predictor of your current day:


The day/night shows you:
  1. Length of day and nighttime for the location of your choice
  2. Solar noon
  3. Sunrise and sunset (these are the outer 'wings')
  4. The position of the sun and moon in the sky
  5. The moon phase, date and time.
Since the lengths of day and night vary according to one’s
position, the watch is manufactured specifically to the geographical
latitude requested by the customer - each watch needs to be ‘position
customised’
to the client’s location. This also means that the day/night
is not really a travel watch, but if you relocate for a longer time the setting can be changed at ochs und junior.

What can you use these indications for? Quite a lot, actually, as ochs und junior explain in their documentation:

Daytime and nighttime
The light and dark-colored areas around the dial show the length of day and night. The lines separating them represent the horizon. The horizon fans move up or down every 10 days to account for seasonal changes.

Sunrise and sunset
Sunrise is when the sun passes from the darker colored area of the dial into the lighter colored area. Sunset is when the sun passes from the lighter colored area to the darker colored area.

Moon phase
You can imagine the center of the watch as representing the earth. The moon’s position in relation to the sun indicates the moon phase. When the moon is beneath the sun, it is new moon, when the moon is opposite the sun, it is full moon.

Solar noon
Using the pusher at 6 o’clock, solar noon (when the sun is at its highest point in the sky) can be set for your location.

Date
The date indication at 6 o’clock is used to set the watch. The reason this watch does not feature a date spiral is that the dial holds gear wheels near the perimeter, as can be seen in the image below.

Sun and moon position
When facing south, the position of the sun and the moon on the dial indicates the direction in which you will find these heavenly bodies in the sky.

So if you wonder whether how long it still is until sunrise, or whehter you have enough daylight left for a little bike ride this evening or if you wonder where to find the moon - the “day/night” can give you answers all of these questions. Now let's let ochs und junior cofounder Beat Weinmann give a personal introduction to day/night’s functions and how its works:



Now imagine that all thes above can be realised with only 13 addtional moving parts ontop of Ulysse Nardin's manufacture caliber UN-320:


  1. Hour wheel on hour pinion with friction
  2. Transition wheel 1 for moon and sun cogwheels
  3. Transition wheel 2 for moon and sun cogwheels
  4. Sun cogwheel
  5. Moon cogwheel
  6. Date disc
  7. Gear wheel between date disc and annual wheel
  8. Year wheel with crank pin in the size of the deflection of the horizon fans
  9. Carriage with cogs to move the horizon fans
  10. Horizon fan
  11. Horizon fan
  12. Module board
  13. Dial

Spiritus Rector Ludwig Oechslin has once more demonstrated his impressive capacity to simplify and condense the essentials parts to an absolute minimum!

I need to get my hands on experience with this watch sooner rather than later. This is an outstandingly romantic, true and refreshingly simple, condensed piece which I already love to death!

Cheers,
Magnus




Fix title spelling
This message has been edited by cazalea on 2018-07-25 18:09:49

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