With this year being the 50th anniversary of its defining movement, Zenith has unveiled several limited editions to mark the occasion, including a three-piece set and a remake of the El Primero A386 in 18k gold. Now the ultimate anniversary watch has just been announced: the one-of-a-kind El Primero A386 in platinum with a lapis lazuli dial, and a 50-year warranty.

This one-off watch – it’s marked as such on the case back – was designed in collaboration with Phillips, the auctioneer led by Livia Russo and Aurel Bacs. And the watch will be sold by Phillips in November, with all proceeds going to a Swiss charity that helps children with cancer.

It’s the first ever El Primero in platinum, and also the first with a lapis lazuli dial. Commenting in the announcement, Zenith chief executive Julien Tornare states unequivocally: “This will be the first and sole El Primero in platinum.”

Materials aside, the rest of the watch is identical to the standard A386 remake. The case is 38mm, fitted with sapphire crystals front and back, while the movement is the El Primero 400.

Key facts

Diameter: 38mm
Material: Platinum
Water resistance: 50m
Dial: Lapis lazuli

Movement: El Primero 400
Functions: Time, chronograph, date
Frequency: 36,000bph, or 5Hz
Winding: Automatic
Power reserve: 50 hours

Strap: Blue calfskin

Price and availability

The Zenith El Primero A386 in platinum will be sold at the Geneva Watch Auction: X that takes place on November 9-10, 2019. It has no reserve, and no estimate, which means the auctioneer will open with the first bid received.

Proceeds from the sale will go to Zoe4Life, a Swiss charity that supports children stricken with cancer. For more, visit Phillips.com.