Shell, plate and belt are coordinated as a whole, full of beauty, and whether the signs are consistent. The case is bright without sharp edges and corners, and the movement should be stable and not shake in the case; Dial and hands are normal in color and legible in handwriting; The mirror is bright and clean, clear and translucent; The back cover gap should be small, and the words and patterns should be clear and complete. The strap is straight and the joints are flexible and soft. The coating will not blister or fall off. There must be no serious scratches on all parts, and external ornaments will not fall off if they linger.
2. Check the action of parts:
When the winding of a mechanical watch is relaxed, start winding it quickly. Quartz watch with second hand stop mechanism, which does not move when the second hand stops; The handle is back to normal, and the watch should work normally.
3. Check the coordination difference between the hour hand and the minute hand:
When the minute hand coincides with the time symbol "12", the hour hand should correspond to the timing symbol.
4. Needle setting check:
When the mechanical watch moves counterclockwise, the second hand is allowed to stop or retreat, but when it stops moving, the second hand should be moved again.
5. Three-pin friction test:
Turn the hour hand, minute hand and second hand to the overlapping position, and check the second hand and glass; Check whether there is friction between the hour hand, the dial and the three hands at 3, 6, 9 and 12.
6. Calendar check:
For watches with calendar and weekly calendar display function, there should be no word skipping or word skipping during inspection, and the day skipping time should be within 15 minutes before and after "0" point.
7. Reliability check:
The watch should not stop under normal use conditions, and the other part should not fall off by itself. The needle fixing mechanism works reliably.
8. Exercise quality inspection:
According to the standard of pointer quartz watch, quartz watch is divided into three grades, excellent, first-class and qualified.
The standard of ordinary mechanical watches is divided into type I according to the diameter of the movement; Type ⅱ; Type ⅲ is divided into three categories, and the travel quality index of watches is divided into 1, 2 and 3 grades.
Instantaneous day-night difference of mechanical watch
The assembly diameter of the movement is mm 1, with 2 grades and 3 grades.
Seconds/day
Type I is more than 20-30 ~+45-40 ~+75-60 ~+105.
Type Ⅱ16 ~ 20-30+45-50+95-70+135
Type ⅲ is less than16-40 ~+85-60 ~+115.
Average instantaneous daily difference of quartz watch
Level seconds/day
Excellent -0.5 ~+0.5
The first category-1.0 ~+ 1.0
Qualified-1.5 ~+ 1.5
Type I continuous travel time should be greater than or equal to 36 hours; The continuous driving time of type II instrument shall be 35 hours or more; The continuous driving time of type III instrument shall be greater than or equal to 34 hours; When automatic winding continues, the type I meter is 32 hours; Class II instrument is 30 hours; Type ⅲ instrument is 28 hours.
9. Identification and label inspection:
A: When buying watches, consumers should pay attention to the instructions of each watch, including: factory name, address, telephone number, instruction manual and implementation standards; The instructions for imported watches and clocks should have Chinese descriptions and the name and address of the agent.
B: Generally speaking, watches are marked with:
QUARTA means: quartz watch
Automatic mode: automatic mechanical calendar watch
Made in Switzerland means: made in Switzerland.
Swiss movement means: Swiss movement.
The physical object should be consistent with the meaning of the label.
10. When buying a watch, if you have doubts about its quality and authenticity, you should go to a watch quality inspection agency authorized by the state for inspection, because only this agency has real authority and the inspection report issued by it has legal effect. 1. Appearance inspection:
Shell, plate and belt are coordinated as a whole, full of beauty, and whether the signs are consistent. The case is bright without sharp edges and corners, and the movement should be stable and not shake in the case; Dial and hands are normal in color and legible in handwriting; The mirror is bright and clean, clear and translucent; The back cover gap should be small, and the words and patterns should be clear and complete. The strap is straight and the joints are flexible and soft. The coating will not blister or fall off. There must be no serious scratches on all parts, and external ornaments will not fall off if they linger.
2. Check the action of parts:
When the winding of a mechanical watch is relaxed, start winding it quickly. Quartz watch with second hand stop mechanism, which does not move when the second hand stops; The handle is back to normal, and the watch should work normally.
3. Check the coordination difference between the hour hand and the minute hand:
When the minute hand coincides with the time symbol "12", the hour hand should correspond to the timing symbol.
4. Needle setting check:
When the mechanical watch moves counterclockwise, the second hand is allowed to stop or retreat, but when it stops moving, the second hand should be moved again.
5. Three-pin friction test:
Turn the hour hand, minute hand and second hand to the overlapping position, and check the second hand and glass; Check whether there is friction between the hour hand, the dial and the three hands at 3, 6, 9 and 12.
6. Calendar check:
For watches with calendar and weekly calendar display function, there should be no word skipping or word skipping during inspection, and the day skipping time should be within 15 minutes before and after "0" point.
7. Reliability check:
The watch should not stop under normal use conditions, and the other part should not fall off by itself. The needle fixing mechanism works reliably.
8. Exercise quality inspection:
According to the standard of pointer quartz watch, quartz watch is divided into three grades, excellent, first-class and qualified.
The standard of ordinary mechanical watches is divided into type I according to the diameter of the movement; Type ⅱ; Type ⅲ is divided into three categories, and the travel quality index of watches is divided into 1, 2 and 3 grades.
Instantaneous day-night difference of mechanical watch
The assembly diameter of the movement is mm 1, with 2 grades and 3 grades.
Seconds/day
Type I is more than 20-30 ~+45-40 ~+75-60 ~+105.
Type Ⅱ16 ~ 20-30+45-50+95-70+135
Type ⅲ is less than16-40 ~+85-60 ~+115.
Average instantaneous daily difference of quartz watch
Level seconds/day
Excellent -0.5 ~+0.5
The first category-1.0 ~+ 1.0
Qualified-1.5 ~+ 1.5
Type I continuous travel time should be greater than or equal to 36 hours; The continuous driving time of type II instrument shall be 35 hours or more; The continuous driving time of type III instrument shall be greater than or equal to 34 hours; When automatic winding continues, the type I meter is 32 hours; Class II instrument is 30 hours; Type ⅲ instrument is 28 hours.
9. Identification and label inspection:
A: When buying watches, consumers should pay attention to the instructions of each watch, including: factory name, address, telephone number, instruction manual and implementation standards; The instructions for imported watches and clocks should have Chinese descriptions and the name and address of the agent.
B: Generally speaking, watches are marked with:
QUARTA means: quartz watch
Automatic mode: automatic mechanical calendar watch
Made in Switzerland means: made in Switzerland.
Swiss movement means: Swiss movement.
The physical object should be consistent with the meaning of the label.
10. When buying a watch, if you have doubts about its quality and authenticity, you should go to a watch quality inspection agency authorized by the state for inspection, because only this agency has real authority and the inspection report issued by it has legal effect.