The model of the table has the following specific meanings:

The format is LA.BCD.E.FG.H

1, and L is the brand: LONGINES, the first letter.

2. Family A: 2 represents collection series and master series; 3 stands for Concas series and Lang series; 4 represents Jialan/ensign/Luya/Magnificent Series; 5 stands for Dezowiener series.

3, b size: 1-4 female size; 5? Medium size; 6-9 male size.

4. CD: serial number

5. E Case material: metal/diamond; 2 vacuum ion gold plating; 3 fine steel/vacuum ion plating; 4 fine steel; 5 is fine steel /18K gold; 6 is 18K gold; 7 is 18K gold/diamond; 8 is 18k rose gold.

6. F dial color: 1 is white; 2 is grayish white; 3 is gold; 5 is black; 7 is gray; 9 is blue.

7. G hour indicator: 1 is Roman numeral; 2 is the scale; 3 is Arabic numerals; 5 for two or more instructions; 7 and 8 are diamonds.

8. H bracelet: is a belt; 1 is a clean belt; 2-5 is a belt; 6 is a chain belt; 7-8 is a chain belt or belt; 9 is a belt.

Extended information:

1. Distinguish the authenticity by looking at the dial of Longines

Some famous Swiss watches have special fine letter marks on the dial. Longines watches are printed with small numbers and marks at the lower end of the dial number 6, indicating the movement number and the dial number. By looking at the dial of Longines watches, the authenticity can be distinguished.

fake tables: most of them don't have these numbers. Some counterfeit watches also print some mark letters on the dial, but they are generally defective, or the dial characters are not set correctly, the dial characters or trademark letters and patterns are not set tightly on the dial, there are many scratches on the dial, and there is no such ultra-micro mark pattern. At the same time, some dial characters are set higher, which makes the front end of the watch pointer tilt upward, resulting in non-parallel between the needle and the disk.

2. Check the Longines watch handle to see whether it is true or not

The handle of the famous brand watch is printed with trademark letters. Some of the handles of fake Longines watches have no letters, and some are marked with letters, but most of them are thick and fuzzy.

fake watch: a fake watch with a calendar and a weekly calendar. From the calendar window, the outside of the calendar dial is tilted backwards, and some calendar dials can be seen to be made of plastic.

3. Check the authenticity by testing the sensitivity of Longines watch

The sensitivity of a watch refers to the flexibility of its balance wheel to swing automatically.

the inspection method is: gently shake the watch that has stopped moving without winding, and observe the movement of the second hand with the help of the shaking force: if the second hand stops moving in a short time, it means that the watch can completely walk after being fully wound, with high sensitivity; If the second hand continues to move for a long time, it means that the watch can't go all the way after it is fully wound, the sensitivity is not high or the watch machine is faulty.

2. LONGINES was founded in Soimia, Switzerland in 1832. It has a long history of more than 18 years and exquisite craftsmanship, and also has outstanding traditions and outstanding experience in the field of sports timing. Longines watches marked by flying wing hourglass are famous for their elegance. As a famous brand of Swatch Group, the world's leading watch manufacturer, Longines watches have spread all over the world in more than 15 countries.

Reference: Baidu Encyclopedia: Longines.