What are the three small watches in Casio watch core?

Three small dials on Casio watches (1, 2, 3 in the figure):

Figure 1: One tenth of the second hand.

Figure 2: stopwatch minute hand.

Figure 3: Stopwatch second hand.

Stopwatch is used to measure the elapsed time in tenths of a second, and the measuring limit is 59 minutes and 59.9 seconds.

Three buttons on Casio watch (A, B, C in the figure):

Button A: Press button A to move the second hand clockwise by one tenth (Figure 1). Press button a to move the pointer quickly.

Button b: adjust time button.

Button C: Press button B to move the second hand of the stopwatch clockwise (Figure 3). Press button B to quickly move the second hand of the stopwatch.

Note: after adjusting the time, be sure to tighten the button B. When the button B is loose, the watch is in a waterproof state.

Extended data:

Casio watch was founded in 1946, and the brand image of vitality, youth, fashion and multifunction represented by Casio has been deeply rooted in people's hearts. Casio has been committed to leading its peers in skills and has made breakthroughs in skills over the years.

Combining high, precise and sophisticated technology with new LCD skills, properly applying it to wristwatches, and constantly improving the development level of wristwatch timekeeping-the spirit of "wrist technology" advocated by Casio has also been passed down and spread in China.

Precautions for waterproofing Casio watches:

The waterproof performance of Casio watches mainly depends on the waterproof aprons in the mirror, back cover and crown, and the spiral crown is adopted, thus reaching the corresponding waterproof standard.

1, Casio watches can be waterproof, but they can't be used in hot baths, saunas or environments with severe temperature difference, because waterproof aprons will expand with heat and contract with cold due to the influence of temperature, which will accelerate aging and affect the waterproof function.

2. The crown of Casio watch should be kept in normal position, the spiral crown should be tightened, and the crown cannot be adjusted in water.

3. The waterproof apron and crown of Casio watches must be replaced regularly according to the usage.

Baidu Encyclopedia-Casio Watch