It can be any of these:

  • Apple Watch Series 7 (GPS + Cellular) Aluminum 45mm
  • Apple Watch Nike (GPS + Cellular) 45mm
  • Apple Watch Series 7 (GPS + Cellular) Stainless Steel 45mm
  • Apple Watch Herm├Ęs (GPS + Cellular) 45mm
  • Apple Watch Edition (GPS + Cellular) Titanium 45mm

The full list of Apple Watch Model Numbers