Tank Américaine 1741 — Leather Strap

Identifying details

• CabochonCabochonA stone polished into a smooth dome without facets. In watches, cabochons can decorate the crown or dial; the term describes the cut rather than a particular gemstone. crown

  Winding crown set with a cabochonCabochonA stone polished into a smooth dome without facets. In watches, cabochons can decorate the crown or dial; the term describes the cut rather than a particular gemstone., typically a blue sapphire.

• GuillochéGuillochéDecorative patterns engraved into a surface with an engine-turning machine. Similar-looking patterns do not by themselves establish how a dial was made. dial

  () dial or dial centre.