This is a scarce vintage Omega "Tank" automatic watch, also known as the Cartier Tank Francaise of Omega. The factory original finish dial is untouched and very good condition, showing minor age spots. The fully serviced 571 automatic wind 24 jewels movement works accurately and running strong. Gold plated with stainless steel unpolished original signed case in very good condition. The crystal is in excellent condition. The movement serial number is 17136818, dating this watch to 1959. The case reference is 3999-1 SC and measures 27.5mm across, excluding the crown by 36mm lug tip to lug tip. It will come with a new 21mm genuine leather strap. The wrist size in the photos is 6 inches. Video link: https://youtu.be/iE-j3p_X5nI
1959 OMEGA "TANK" AUTOMATIC WATCH
Circa: 1959
Model: Unsigned
Calibre: 571
Movement serial #: 17136818
Jewel count: 24 jewels
Movement Type: Automatic wind
Case model: 3999
Case Material: Gold plated case with stainless steel back
Case gasket: Does not take a gasket
Crystal: Acrylic crystal
Crown: Original signed
Case Diameter excluding crown: 27.5mm
Case length lug tip to lug tip: 36mm
Dial: Factory original finish
Hand type: Dauphine (original)
Strap material: Genuine leather
Strap width in between lugs: 21mm
Wrist size in photo: 6 inches