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1. The nature is different: the three hands of the big three hands, the three needles are placed on the central axis of the dial, and do circular motion around the central axis of the dial.
All three hands are large in orange, but for the sake of difference, the hour hand is the thickest, the minute hand is slightly longer, and the second hand is more elongated. The large three hands are characterized by clear and generous reading, and the dial design is classic and traditional. A two-hand watch has only the hours and minutes.
2. The starting time is different: the popularity of small three needles continued until the beginning of the 20th century. In the 20s of the 20th century, the application of microporous penetration technology made it possible to add a second axis to the central axis of the watch. In order to make it easier to read the time, the clocks worn by pilots were the first to be replaced with large three hands.
3. Different types: because the second hand is the longest and most frequently traveled watch hand, and the second hand of the large three hands is obviously heavier than the small three hands, followed by the second two hands, so it will increase the consumption of power. Two-hand watches have been gradually improved since the mid-19th century, when chronograph watches were put on a belt and worn on the wrist.
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Big three stitches:
The hour, minute, and second hands all exist and share a dot, which is the big three. And when we say big three-hand watches, we usually mean those basic models that only have the function of indicating the time, and at most the display of the date.
The large three needles look the most ordinary, without color, or even without scales can be more efficient and clear to transmit time information, the large three needles are a very efficient, effective and classic graphic information symbols.
Small three hands: The small three hands share a dot between the hour and minute hands, and an independent small disc is set up for the small seconds hand, which displays the movement of the second hand separately. That is, on the basis of the original two-hand watch, a small window is opened for the second hand. The small three needles are also called short three needles and two and a half needles.
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The large three hands are the classic ones for the hour, minute, and second hands, and most models with small three hands have a chronograph function.
How to use the chronograph function:
Generally speaking, chronographs must have the function of recording seconds and minutes, now most chronographs have three subdials + two buttons, different brands and models of subdials and buttons are also different, the shape is also different, but how to change the case and dial design, are inseparable from these several indicator scales.
The subdials are: minute counters, hour counters, and small seconds counters. (Some watch subdials are: 24-hour clock, tenths of a second).
The two buttons are: timing start, stop, and timing zero reset.
Timing Usage Steps:
Step 1: Press the chronograph button to start the chronograph, the big second hand starts to move, the big second hand goes around, and the minute counter moves one square; The minute counter goes one circle, the hour counter goes one square, and so on;
Step 2: When the chronograph button is pressed again, the chronograph stops, and the scale indicated by the large seconds hand and the chronograph counter is the chronograph reading;
Step 3: After the timing is completed, press the reset button to reset the chronograph to zero.
Because under normal circumstances, the big seconds hand does not go, so the chronograph is different from ordinary watches, the big second hand always stops at 12 o'clock, so some friends who don't know see the big second hand of the chronograph on other people's wrists do not go, and they think that the watch stops, but in fact, this is not the case.
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There are three main hands on the watch, which are the hour, minute, and second hands.
In order to make the watch hands as easy to read as possible, it is necessary to place the three hands in the center of the watch (the non-round dial is the center position). If the hour, minute, and second hands are placed in the center of the circle, this dial design is called a large three hand.
There is also a more common way to set the hour and minute hands to the large hand, and find a separate second hand on the dial to draw a separate second hand counter, and set a small stopwatch hand, this dial hand design is called a small three hands.
The principle of timekeeping is the same, but there is a difference in the design of the watch hands.
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1. The most classic is the large three-needle style of Lange, Breguet, and PP.
2. They are the functions of the hour hand, minute hand and second hand.
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Is the landlord asking about the role of the small three needles??? Isn't the big third needle an hour minute second??? If you ask the small three hands, the function of each movement is different, you want to know the model of the movement, I can help you if you know this.
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Small three hands: A watch with a small disc on the surface to indicate the seconds, commonly known as "small three hands". The second hand is mounted directly on the axle of the four wheels.
It is usually located at the figure 6 of the surface. There are also 10, 9, 8, 3, etc. on some clocks, but they are rare. As for the second hand, which is on the same central axis as the hour and minute hands, it is called the "big three".
The big and small three needles actually have no effect, they just meet different aesthetics.
The earliest function of the large three hands was because the previous pilots used the watch, they were all small three hands, and they could not clearly see the seconds, so they changed to the large three hands. It is more beneficial for the pilot to count the seconds when using it again.
Later, the large three hands became the style that major watch brands vied to produce. Because the big three hands are more atmospheric, simpler and more elegant than the small three hands, the big three hands have also become the best watch for formal wear.
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