Tomas Renner

Tomas Renner

1972
German
1990
Oris
A vintage Tissot Camping from the 1950s with a Milanese bracelet
Royal Oak Ultra Thin Perpetual Calendar
I'm Tomas, and I've been working for Chrono24 for several years now. The first watch I ever bought was a quartz Casio tool watch with an altimeter so I could keep track of my altitude while skydiving, for example. When my father passed away, I inherited his Tissot Automatic from the 1990s. I ended up selling that watch and began buying and selling vintage timepieces online. Slowly but surely, I developed a fascination with design, functionality, and the eternal yet transient nature of every watch. The launch of Chrono24 has completely changed the luxury watch trade. It has a nice design, a great selection, and unrivaled security. I immediately felt at home. I like diving deeper into complications related to time – such as moon phase displays, perpetual calendars, star charts, and equation of time – and making them understandable to a wider audience.

All Articles (3)

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12/25/2019
 7 minutes
Watches and Technology

Equation of Time: How They Work and Three Stunning Models

By Tomas Renner
Grand Complications: Perpetual Calendar Watches
05/29/2019
 5 minutes
Watch Guides

Grand Complications: Perpetual Calendar Watches

By Tomas Renner
Sun, Moon, and Stars – Watches with Moon Phase Displays
02/20/2019
 5 minutes
Watch Guides

Sun, Moon, and Stars – Watches with Moon Phase Displays

By Tomas Renner