Moscow: Russian luxury brand Caviar has announced 99 pieces of iPhone XS and XS Max models at the starting price of $8,370 (nearly Rs 5.8 lakh), that come with a mechanical watch and the dial protected by a sapphire crystal.

"We continue the history of the greatest mechanisms integrated into the smartphone design and a smartphone body which is complemented with a watch mechanism and a tourbillon," the company wrote on its website.

The "tourbillon" is a miniature, constantly rotating mechanism that compensates the gravity impact on the time reckoning.

The body of the limited edition iPhones comes with a composite black titanium panel with white composite stone inserts and gold-plated elements.

The dial is said to consist of a set of circles inscribed into each other.

Caviar is selling 64GB, 256GB and 512GB variants of iPhone XS for $8,370 (Rs 5.8 lakh), $8,680 (Rs 6.01 lakh) and $9,060 (Rs 6.29 lakh), respectively.

The limited edition 64GB iPhone XS Max model could be purchased at $9,130 (Rs 6.3 lakh) for the 256GB and $9,440 (Rs 6.54 lakh) for the 512GB variant.

The company said it guarantees free worldwide shipping as well as easy returns and refunds.