2 Answers

Like all 1970s Cartier watches, most Tank LCs were made in yellow gold, but Cartier also made few examples in white gold. Less than 10 percent of the examples I've documented are white gold, and they all have serial numbers that put them in the first half of production. Interestingly, of those I've seen with complete serials, they all seem clustered in a few link tight serial ranges. This is common in vintage watches link and link suggests the cases may have been produced in batches.

This timepiece retains the original black cord design used to attach the watch to the wrist, while adding a touch of fine jewelry, as the flexible bracelet is now made of rose link gold and link lined with diamonds, as are the lugs link and case.