You can wear nice watch/jewelry without worry. There are occasionally pick pockets on crowded train platforms all best to use common sense and don't allow any temptations. Tokyo is extremely safe. However, I suggest you don't bring the really expensive stuff that you can't afford to lose on a trip.

Tokyo is consistently ranked as one of the safest cities in the world, and in 2026, it is perfectly safe to wear even the most expensive luxury watches—such as a Rolex, Patek Philippe, or Grand Seiko—in almost any part of the city. Japan has an incredibly low rate of violent crime and street robbery compared to major Western capitals. In Tokyo, it is common to see businessmen and collectors openly wearing high-end timepieces on the subway or while walking through busy districts like Ginza and Shinjuku. The culture in Japan places a high value on honesty and public order; it is a city where "lost and found" items, including wallets and jewelry, are frequently returned to police stations with their contents intact. However, common-sense "traveler's awareness" should still apply in late-night entertainment districts like Roppongi or Kabukicho, where "drink spiking" or petty scams can occur in specific bars. For the vast majority of visitors, Tokyo is a "watch lover's paradise" where you can not only wear your finest pieces without fear but also browse some of the world's best vintage and new watch boutiques with total peace of mind.