Japanese Kabuto on Chinese Fob ?

I believe this a very scarce watch fob from the Tungwen (also Tongwen) College that started in Peking 1862. The school was for teaching Western languages. There's the Kabuto helmet on one side and a caduceus on the other side. The school did start teaching medicine in 1877. Was there a reason for this style of helmet to have been on this fob? Could this have been made for a Japanese student or faculty? Did the Chinese ever wear this style helmet? Thank you for any help you can provide.

It's not a watch fob of the Tongwen Guan (同文館), as you interpreted, but a fob of the Tung Wen College (東亜同文書院大学) in Shanghai. It was a Japanese private college, so it's reasonable that kabuto was on it.

(all in Japanese)

I think 2574 would refer to 皇紀 (kōki/Japanese imperial year) 2574年, i.e., 1934.
The kanji inscribed on the edge are 服部製 Made by Hattori (服部時計店/K. Hattori & Co., Ltd), the present SEIKO.

Toritoribe, Thank you very much. My searches kept steering me towards Tongwen Guan. The people on this forum are a wealth of information.