1979 Cartier Vintage Ladies Tank Watch with Deployment Buckle - Solid 18K Gold Moonphase Movement type: LeCoultre Caliber 818/2

Movement type: LeCoultre Caliber 818/2

large unusual steel indexes with luminous dots

it could display the month

It features a "tropical" water-resistant style case with screw back well-suited for a tropical climate or for someone with sensitive skin

but it is more likely a very high quality aftermarket addition

1979 Cartier Vintage Ladies Tank Watch with Deployment Buckle - Solid 18K Gold Moonphase Movement type: LeCoultre Caliber 818/2Designed personally by Louis Cartier in 1917 and patterned after an army tank, Cartier's Tank watches symbolized speed and achievement and have become one of the company's iconic models. Before cost cutting measures brought about the widespread use of quartz movements for certain wristwatches, Cartier utilized Swiss crafted mechanical movements. Using centuries old watchmaking practices, craftsmen poured individual attention into each wristwatch.