I think everyone has encountered this situation: I saw a fine imitation watch, I like it very much, and I tried to buy it. I found that the effect is not good. In fact, a large part of the reason is a matching value between the dial and the wrist.
Step 1: Measuring the wrist size
The wrist should be measured with a soft ruler (not too tight to avoid deformation of the ruler) next to the position behind the wrist.
If you don’t have a tape measure, you can use a soft rope or a piece of soft paper to wrap around the wrist. Remember, you must wear the wrist of the watch. Each person’s left and right wrists are generally different in thickness (reason… it’s hard to say)
Step 2: Formula conversion to determine the size of the wrist suitable for the wrist
– Convert the unit of measure measured in step 1 to millimeters. For example 16 cm to 160 mm.
– Remove this number with the watch diameter number you want to buy. For example, if you want to buy a 38mm diameter dress watch with a wrist circumference of 160mm, the result will be 160:38 = 4.2. This number is called the case index.
– Based on this result, it can be judged whether the size of the watch is suitable for the wrist. The most suitable case index range is from 4 to 5; if it is less than 4, the watch is too big. If it is greater than 5, the watch is too small. For example, the wrist size is 160mm. Then a watch with a size of 32 mm to 40 mm is suitable for wearing.
– If it’s a slender but wide wrist. The case index should be chosen to be slightly less than 4.
– Sport watches and dive watches can choose a case index of less than 4 without any problems.
– If it is a small wrist, you should not choose a watch that is too thick.
– If the lugs are too long, you should not choose a watch that is too large.
– The square case always looks bigger than the round case, so the case index of the square table should be slightly larger.
– An oval and rectangular watch that measures the wrist horizontally.