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The Deep Track

The Deep Track, Ep. 94 - What's Up with Zenith, Jean-Claude Killy, and a New COSC Standard

28 min19 februari 2026

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This week is a solo episode discussing topics ranging from the Breitling / Aston Martin partnership, to a new COSC chronometry standard set to go into effect this year. A recent review of the Zenith Chronomaster Original Triple Calendar Lapis Lazuli has me thinking about the bigger picture with Zenith, and it also reminds me a bit of another famous reference from Rolex, the 6236 Dato Compax, aka the Jean-Claude Killy, which is rather timely given the winter games currently taking place. All this and more broken down in this episode. 

Show Notes:

The Deep Track

A Lange & Sohne Boutique in Chicago

Breitling Enters F1 with Aston Martin Partnership

Prometheus Ocean Diver

Brian Green

Zenith Chronomaster Original Triple Calendar Lapis Lazuli Review

Jean-Claude Killy

Rolex 6236 Dato Compax ‘Killy’

Killy Wearing a Breitling

COSC Excellence Chronometer Standard

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