I'm posting for a friend of mine who owns an 18 jewel, Patek Philippe Gondolo Chronometro pocket watch. His watch is in beautiful, original condition, and runs well. However, he cannot pull the stem to set the time. I tried, gently, but could not budge it. Does this watch have a lever, or locking mechanism on the stem? I looked, but couldn't see anything. As you've guessed, I'm not a watch person. I focus strictly on clocks. Any help is most appreciated.
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