Tank Française 2366

18k white-gold automaticAutomaticA mechanical movement wound by a rotor as the watch moves on the wrist. Tank Française, 28 × 32 mm, with centre secondsCentre secondsA seconds hand mounted on the same axis as the hour and minute hands., date and 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. The earliest catalogued example is dated circa 1998.