Apple Watch Hallmarks and fineness marks for Apple Watch Edition
The watch case for Apple Watch Edition and the gold portions of its bands are crafted from 18-karat gold (750 parts per thousand).
Hallmarks and fineness marks for Apple Watch Edition are located on Apple Watch Edition under the band. Remove the band to view them. Hallmarks and fineness marks are also available on Apple Watch Edition. Open the Settings app 
from the Home screen, then go to General > Regulatory. Hallmarks for the Apple Watch Edition bands are on the band clasps or the lugs. Hallmarks and fineness marks may vary by country.
Hallmarks and fineness marks:
