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Joel Gear (ジョエル・ギア Jyoeru Gia) is a watchmaker that was found in North America. He was revived to take apart the Petrification Weapon and see what makes it tick.


Joel is a young man with a bowl cut and two errant hairs sticking out of the top of his head forming a '12'. His eyes are white with no visible pupil, almond-shaped, and have dark shadows underneath. They are also mostly hidden by his bangs. His eyebrows and nose are both narrow. His mouth seems quite small, with no visible lips.

His outfit is heavily clock themed, consisting of a graduated collar with a set of heart-shaped clock hands dangling down the front, a black long-sleeved shirt with '9' on the left arm and '3' on the right in swirled writing, and a white apron with side pockets and a '6' on the front in a similar font. The numbers along with the clock hands on his chest creates a simplified clock across his whole body. He also wears black pants, shiny leather shoes and has a watchmaker's loupe (magnifying eyeglass) strapped to his head. Upon arrival at the American Colony's base, he made himself a watch to wear as well.


Joel is very confident in his abilities, showing great pride in himself. He believes a man with who minds his time should always wear a watch, as it's proof of good taste. He prefers to work in silence, albeit without a desk, squatting on the floor.

Depending on who he is interacting with, Joel mannerisms change drastically. With women, Joel is very shy and stutters, not saying much. This is because he spent his whole life working and never learnt how to act around women. In contrast, Joel is quite rude, cocky and verbose when interacting with other men, showing them no respect whatsoever. However, he will show respect to fellow artisans, as he wanted to share a toast of wine with Kaseki over the success of their mission.

Abilities and Skills

According to his former boss, Joel is a very skilled watchmaker and was her star employee. He was able to craft a wristwatch in a day after reviving. He was also able to study the mechanics of the petrification weapon, succeeding in restoring its ability to function.


South America Arc

Joel is revived by the Kingdom of Science. When he awakens, he's immediately embarrassed as he is naked in front of three women, to which Minami remarks "is a normal reaction". After arriving back at the American Colony's base, Joel is put to work by Brody. He is given the petrification device to analyze and is amazed by its intricacies. Joel soon finds the central core, noting it was blackened, and tries removing and placing it back in to see if it will function. Testing his theory, Joel gives it a command, and sure enough, the device activates and he is petrified a second time.[6]

Not long after, he is revived again by Yuzuriha. Joel once again shows his shyness to women and rudeness to men. In spite of this, he intends to continue working on the device.[11]

Joel would later confirm that the diamond the KOS made was a true diamond, and was up to the task of creating a diamond identical to the one in the medusa, claiming no one has ever seen skills like his, and would continue to work on perfecting the diamond[12].

However, this would prove to be a challenge, as Joel was said to be struggling to perfect the battery alongside Kaseki[13]. Kaseki would later find the key to perfecting the battery, that being splitting it down the center. However due to no longer being able to communication with Corn City, they couldn't relay this information to Joel, would have to find this fact on his own[14]. When Francois and Suika were captured by the Americans, Francois sent a message to Corn City telling them they have split into two groups[15].

To the Americans in Araxa, this message didn't seem suspicious to them, however Dr. Brody thought something was off about sending such a pointless message, and prevented the group at Corn City from hearing it. However it is revealed that the watch Joel made when he first arrived at the base received morse code of incoming messages. Joel claims he did this as he only trusts his own work. Joel would use the clue he received from Francois and finishing the medusa. Upon finishing it, Joel activated it inside of a glass of alcohol, declaring a toast to not just finishing the job, but also to Kaseki, who was the master craftsman that discovered this.

After seeing the medusa complete, Brody grabs the medusa from inside the glass, shattering the glass in his hands, claiming that Joel tried it out inside a class to prevent the Americans from stealing it. Brody would go on to put the medusa in a safe and had the other soldiers put guns up at Joel and the other KOS members. Joel's watch would receive a message in Japanese from Senku, and after having Minami translate it, Joel and everyone else is shocked at the orders from Senku that its do or die. As the rest of the KOS charges into battle, Joel states he cant go on with a toast of victory with Kaseki, believing in everyone and Senku[16].

Joel watches as everyone charges in and are shot down one by one in their attempt to get the Petrification Weapon. After the quick battle ends, the Americans stand atop the pile of bodies, believing to have killed everyone. However, Joel was still alive, and he reaches out for the medusa in the open safe while the soldiers are off guard, using Kinro as a shield. Joel taps and button on his watch and grabs the medusa, as Brody slams the safe on Joel's arm, crushing it. When Brody questions why he betrayed them, Joel says its Bourbon Revenge, and that they interfered with his toast of victory. Brody realizes that Joel's watch is a radio and orders it to be taken, however he is too late, as Why-man's regular radio wave is received by Joel's watch. The order '12,800,000 meters, one second' is given, and the world wide petrification is activated again. Joel is once again petrified as the petrification beam covers the whole of Corn City and soon Earth[17].

Globetrotting Arc

Eight years after the second petrification event, Joel is revive along with the rest of the kingdom of science in America by the group led by Taiju. Joel was happy to be revived but was disappointed that Kaseki was not with them to share a toast. After Brody and the others are updated on the Wyman situation Joel and the others are surprised by Senku planning to create a computer. [18]

Chapter Appearances

Chapter Appearances
South America Arc
170. Staring Up at the Same Moon Absent
171. Staring at the Same Light Absent
172. Marked with an "X" of Wisdom Absent
173. Earth Race Absent
174. The Specter of the Panama Canal Absent
175. Ultra Race Across South America Absent
176. Net-Breaking Battle Plan Absent
177. Medusa Mechanism Debut
178. Science Scales Mountains Appears
179. Bonds on the High-Wire Absent
180. Sickening Yet Beautiful Pictured
181. New World Science Absent
182. Diamond Heart Pictured
183. Stone Sanctuary Appears
184. Fort Medusa Mentioned
185. Lovely Cleavage Plane Appears
186. To Each Their Own Blade Absent
187. Cyber Guerilla Absent
188. What I Once Sought to Destroy Absent
189. Our Dr. Stone Absent
190. Science Transcends Life Appears
191. Divine Scream, Down to Earth Appears
192. Until We Meet Again Petrified
193. Our Stone World Absent
New Stone World Arc
194. Homo Sapiens, All Alone Petrified
195. Treasure Hunter, All Alone Absent
196. Scientist, All Alone Absent
197. A Stony Eden and Its Forbidden Fruit Absent
198. Whole New World Absent
199. Superalloys Absent
200. Future Engine Absent
Globetrotting Arc
201. Morse Talk Mentioned
202. Ryusui Corp. Absent
203. Missile Heart Absent
204. The Universe is Written in the Language of Mathematics Absent
205. Universe of Zeroes and Ones Absent
206. Dawn of the Computer Appears
207. Linking the Circuit Diagram Pictured
208. Science Transcends Humanity Appears
209. The Rocket's Hard Truth Mentioned
210. Not One-Way Absent
211. World Tour for Resources Absent
212. Final Part: Stone to Space Flashback
Moon Mission Arc
213. Unknown Known Absent
214. Stone World's Earth Defense Force Absent
215. Long, Long Road Absent
216. Hello, World Absent
217. Science Underdogs Absent
218. WWW (World Wide Workshop) Absent
219. Three Heroes Absent
220. A Desire for All Appears


  • The hairs making the '12' seem to have only popped out after depetrification.
  • All of the swirls on his body spiral clockwise outwards.


  1. Dr. Stone Manga: Volume 22 — Extras
  2. Dr. Stone Manga: Chapter 190, Page 4, based on the drinking age in America and assuming his drink is alcoholic.
  3. Confirmed 20+ in a Twitter space hosted by Riichiro Inagaki on August 4th 2021
  4. Dr. Stone Manga: Volume 21 — Knight File
  5. Dr. Stone Manga: Chapter 1
  6. 6.0 6.1 Dr. Stone Manga: Chapter 177
  7. Dr. Stone Manga: Chapter 177, Page 19
  8. Dr. Stone Manga: Chapter 178, Page 4
  9. Dr. Stone Manga: Chapter 191, Page 19, Joel Gear is petrified along with the rest of Corn City.
  10. Dr. Stone Manga: Chapter 206, Page 5, Joel Gear is revived in Corn City.
  11. Dr. Stone Manga: Chapter 178
  12. Dr. Stone Manga: Chapter 183
  13. Dr. Stone Manga: Chapter 184
  14. Dr. Stone Manga: Chapter 185
  15. Dr. Stone Manga: Chapter 186
  16. Dr. Stone Manga: Chapter 190
  17. Dr. Stone Manga: Chapter 191
  18. Dr. Stone Manga: Chapter 206

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Pre-Petrification Humans
Male Brody DudleyByakuya IshigamiCarlos BarriosGen AsagiriHyogaJoel GearLeonard MaxwellMax AdamsRyusui NanamiSai NanamiSenku IshigamiShamil VolkovStanley SnyderTaiju OkiTetsuya KinomotoTsukasa ShishioUkyo SaionjiXeno Houston WingfieldYakov NikitinYo Uei
Female Charlotte BonyChelsea ChildeConnie LeeDarya NikitinaHomura MomijiLillian WeinbergLuna WrightMaya BiggsMinami HokutozaiMirai ShishioNikki HanadaYuzuriha Ogawa
Unknown Francois