I think if we are talking about watch as in wrist watch, this started in the 16th century in Europe when Coptic was on its deathbed. This verse from Isaiah 38:8 mentions the degrees of shadow on a sundial using the word ⲁⲛⲁⲃⲁⲑⲙⲟⲥ & ⲧⲱⲧⲉⲣ (lit. stair step), in Sahidic the word ⲧⲱⲣⲧⲣ. I doubt that we can use the word as is. But this is the closest I could get.
Ϩⲏⲡⲡⲉ ⲁ̀ⲛⲟⲕ ϯⲛⲁⲫⲱⲛϩ ⲛ̀ⲛⲓϧⲏⲓⲃⲓ ⲛ̀ⲧⲉ ⲛⲓⲁⲛⲁⲃⲁⲑⲙⲟⲥ ⲛⲏⲉⲧⲁⲫ̀ⲣⲏ ⲥ̀ⲉⲛⲟⲩ ⲉ̀ϧ̀ⲣⲏⲓ ⲡⲓⲓ̅ ⲛ̀ⲧⲱⲧⲉⲣ ⲛ̀ⲧⲉ ⲡ̀ⲏⲓ ⲙ̀ⲡⲉⲕⲓⲱⲧ ⲟⲩⲟϩ ⲉⲓⲉ̀ⲧⲁⲥⲑⲟ ⲙ̀ⲡⲓⲣⲏ ⲓ̀ ⲉ̀ϩ̀ⲣⲏⲓ ⲉ̀ϫⲉⲛ ⲡⲓⲓ̅ ⲛ̀ⲧⲱⲧⲉⲣ ⲟⲩⲟϩ ⲁ ⲡⲓⲣⲏ ⲓ̀ ⲉ̀ϩ̀ⲣⲏⲓ ⲉ̀ϫⲉⲛ ⲡⲓⲓ̅ ⲛ̀ⲧⲱⲧⲉⲣ ⲛⲏⲉⲧⲁ ϯϧⲏⲓⲃⲓ ⲓ̀ ⲉ̀ⲡⲉⲥⲏⲧ ⲉ̀ϫⲱⲟⲩ.
ⲉⲓⲥ ϩⲏⲏⲧⲉ ϯⲛⲁⲕⲧⲟ ⲛⲧϩⲁⲓⲃⲉⲥ ⲛⲛⲉⲕⲧⲟⲣⲧⲣ ⲛⲁⲓ ⲉⲛⲧⲁⲡⲣⲏ ⲉⲡⲉⲥⲏⲧ ϩⲓⲱⲟⲩ . ⲛⲧⲱⲣⲧⲣ ⲙⲡⲏⲓ ⲙⲡⲉⲕⲉⲓⲱⲧ . ϯⲛⲁⲕⲧⲉ ⲡⲣⲏ ⲙⲙⲏⲧ ⲛⲧⲱⲣⲧⲣ . ⲁⲩⲱ ⲁⲡⲣⲏ ⲁⲗⲉ ⲉϩⲣⲁⲓ ⲉϫⲙⲡⲙⲏⲧ ⲛⲧⲱⲣⲧⲣ . ⲛⲧⲁⲑⲁⲓⲃⲉⲥ ⲉⲓ ⲉⲡⲉⲥⲏⲧ ϩⲓⲱⲟⲩ .
Behold, I will turn back the shadow of the degrees of the dial by which ten degrees on the house of thy father the sun has gone downI will turn back the sun the ten degrees; so the sun went back the ten degrees by which the shadow had gone down.
