Stopwatch is a brand new item being added in Patch 7.22 that gives you the Zhonya’s Hourglass active, Stasis.
This 600 gold component item doesn’t actually have any stats associated with it and it is a single-use item. Once you use Stopwatch to Stasis once, it will become a Broken Stopwatch in your inventory. The shopkeeper will only sell Broken Stopwatches after you have broken your first.
This item really comes into play through Zhonya’s new build path. The Hourglass now builds out of Fiendish Codex, Seeker’s Armguard, Stopwatch (or Broken Stopwatch) and 200 gold. Zhonya’s price isn’t actually going up, so the addition of Stopwatch is simply a flat buff to the item, making it far more efficient to build.
Stopwatch also builds into Gargoyle’s Stoneplate and Guardian Angel. Gargoyle’s Stoneplate now builds from Chain Vest, Negatron Cloak, Stopwatch and 380 gold. Guardian Angel now builds from B.F. Sword, Cloth Armor, Stopwatch and 200 gold. Similarly to Zhonya’s both of these items are more gold efficient now. Even better, AD Carrys finally get to use Stasis once per match.
Players who love using Stasis can take the Perfect Timing rune in the Inspiration tree. This rune will grant you a free Stopwatch at six minutes and also make your Zhonya’s Hourglass, Guardian Angel and Gargoyle’s Stoneplate cooldown much faster.
Consider buying a early Stopwatch or taking Perfect Timing when going up against champions like Zed or Syndra in the mid lane or Kalista or Xayah in the bot lane.