Here is an old but still functioning aviation clock AChS-1 which was previously cataloged on this blog in this post - AChS-1V Aviation Clock
It is much older than myself but still works.
Has the following functions: time keeping function, stop watch x 2, flight time counter for 24 hours with a day-night mode; power reserve is 48 hours (but in fact much more), basically this clock is a mechanical instrument chronograph.
It is a hand wind clock. i.e. you wind it manually.
Travel clocks are usually compact mechanical, electro-mecanical or electronic clocks (usually with an alarm function) that are compact and meant for use on the road.
I have several travel clocks, and here's one of them - the Ford electronic (digital) travel clock.
Functions:
Calendar: date, day, month, year (only in set mode) - an automatic calendar up to 2099 after which goes back to 1900).
Time: current time.
Alarm: daily alarm plus a birthday reminder, i.e. a yearly alarm.
Timer: yes.
Thermometer: yes, switching between Fahrenheit and Celsius by pressing just one button.
There is also a magnet on the back, so you can stick it to a refrigerator....
...or to a cooker.
Purchased it some years back from my Ford dealer, the clock is made in China, of course, and it's good quality.
Temperature readout is switched from Celsius above to Fahrenheit below.
Not a watch this time but a whole wall mounted clock from my collection. And not just any clock -- a Vostok ship cabin clock!
I have had it since 2007 -- that means what -- for 6 years already? -- and it has been operating flawlessly and generally keeps a very good time. I had to move the adjusting slider at the top of the dial a bit at first but since then it has been running within single seconds per week -- better than almost all of my wristwatches.
The watch case opens and locks tightly with a key. The same key is used to wind the watch up. The case is dust- and water-proof. But some even claim that the clock is genuinely a water tight clock, they even say that such clocks have been found working and in some cases still ticking on board submerged vessels -- literally under water.
Setting time and winding.
Its technical data sheet runs like this:
Movement with 12 jewels with an anchor escapement.
Monometallic balance.
Splash-proof aluminum case with anti-corrosion coating.
At temperature 20±5°C, at humidity to 80% 6 days operation accuracy rate is ±90 sec.
Power reserve – 8 days.
Daily temperature change accuracy at the temperature range –25°C to +50°C is not over 1 sec. per 1°C.
Diameter – 210 mm.
Height – 74 mm.
Weight not exceeding 2,8 kg.
Regarding its appearance, my only complaint is the dial design, specifically the submarine picture on the dial. I would much prefer a plain white dial or a radio room type of dial. You see, the submarine picture and especially the black detail around it interferes with the hands, especially the shorter hour hand when it is between 11 and 1 o'clock -- the hand gets lost against the black circle when viewing it from certain angles -- as a result dial readability suffers. Other than that, I am satisfied with everything.
