The model number of an S.T. Dupont lighter is usually engraved on the side or the bottom of the lighter. It typically consists of a series of numbers or a combination of letters and numbers.
Start by examining your lighter closely. Look for any markings or inscriptions. If you find a series of numbers, that’s most likely your model number! It might be small, so a magnifying glass could be helpful.
Still can’t locate the number? Don’t worry! You can also check the original packaging or paperwork that came with the lighter. Sometimes, the model number is printed on the box or mentioned in the manual.
For more detailed guidance, please refer to some professional articles.