What is the value of a 1903 Mercedes pocket watch?

The value of a 1903 Mercedes pocket watch depends on its specific rarity, condition, type of movement, and various other factors. Without examining the item or having it authenticated by an expert, providing a specific evaluation would not be possible.

It would be advisable to take the watch to a professional watch specialist or visit a trusted watch dealer who specializes in vintage pocket watches for a proper valuation. They can provide you with an accurate appraisal based on various factors such as model, age, materials used, rarity, and current market conditions. Remember that the rarity and historical importance of some vintage timepieces can add significant value.