Many adjustments (note: the balance wheel does not have a cut rim, but is compensated none the less).
The single button means this is a Flyback Chronograph (Wiki).
Chronometer is a reference to the accuracy of the watch independent of temperature or the physical orientation of the watch.
|without the CR2430
I have turned the bezel so that N points to true North when the compass display says 0 or 360 degrees.
The bubble level is not centered when the watch is on its side.
To move between Time ->Alt -> Baro -> Comp -> Time
the upper right button is pressed.
|Time & Date screen
Dec 25 (2010)
Note the seconds tick mark at about 14 seconds.
increasing at 6 feet per minute (not really it's sitting on my desk, but the barometric pressure is decreasing)
1110 feet above Mean Sea Level
at 9:59 am
68 deg F
at 9:47 am
The graph in the upper left is a history of the barometric pressure.
There is also a recording function that will keep a record of the baro pres for months.
To see what happens when the watch is not level see:
Experiment Relating to the Vertical Component of the Earth's Field
For more on magnetic sensors see my sensors page
|Magnetic (and True with
set) Compass & Bubble Level
at 9:47 am
The Bezel is turned about 15 degrees to allow an estimation of True North.
When the compass reads 0 or 360 the bezel "N" is where True North is located.
Note: In order for the compass to read correctly the bubble level needs to be centered.
Here the watch is out of position.
These were a Gift Dec 2013.
Fig 1 A. LeCoultre Swiss, 15 Jewels (Wiki), 3 Adjustments
You can see 2 Ruby pawls of the lever escapement (Wiki) at the right as well as two different types of jewels.
Fig 2 H. & E. Rossel, Swiss, 17 Jewels, 4 Adjustments (Wiki)
You can see a temperature compensation cut in the rim of the balance wheel (Wiki) and one Ruby pawl below it and to the right.