2012/02/17 - Ball Watch Trainmaster Worldtime Chronograph

The masterly meeting of two of watchmaking’s accomplished complications 

In 2010, BALL Watch Company was the premier watchmaker to present the first mechanical movement including a day and date function combined with a 24-hour time zone display. The “Engineer Master II Diver Worldtime” and “Trainmaster Worldtime” models were the first BALL timepieces to have a caliber with this new module developed specially in our workshops.

To provide watches that can operate at the same time in the four corners of the globe for inveterate travellers and businessmen off to conquer the world, BALL Watch Company decided to extend its collection of a new model housing its universal time display module. In this way, BALL is offering a new tool that is able to display at any given moment the common denominator of all human beings, namely the passage of time and the value that each man and woman places on it.

In its absolute respect for the values of precision, reliability and tradition of the “Trainmaster” series, the Worldtime Chronograph thus provides a worthy addition to the BALL watches combining a day and date function with the time display in the 24 hour zones. Grafted onto an automatic ETA 7750 movement, a special module drives a disk engraved with the names of the planet’s main metropolises rotating automatically in the reverse direction to the hands, so that it simultaneously indicates the time in 24 different geographic zones. In this way, BALL Watch has relaunched the attraction for its chronograph range, ever a timeless watchmaking complication and one of the functions unanimously appreciated by mechanical timepiece aficionados. The Trainmaster Worldtime Chronograph therefore delivers the perfect combination of these two accomplished watchmaking complications.

The first of our chronographs to be fitted with this technical innovation, this new model also incorporates all the features for which BALL watches are renowned. The first of these, the iconic signature of our brand, is the watch’s perfect legibility even in the dark thanks to the addition of 15 micro-tubes filled with 3H gas on the hands and the dial. This state-of-the-art Swiss technology means a BALL watch wearer never loses sight of the notion of time, day or night, wherever he or she may be. Water-resistant to 50 meters and certified shock resistant up to 5,000Gs, the Trainmaster Worldtime Chronograph ably combines strength with streamlined elegance and restrained design. Available with a white or black dial, the stainless steel case can be affixed to the wrist using a crocodile leather band. An anti-reflective sapphire crystal and screw-in crown add the final demanding touches to this exceptional chronograph.

Today, more than ever, BALL Watch is continuing its journey and asserting its role as a key protagonist in the exploration of modern time and the evolution of watchmaking history.

Technical specifications

Ref. CM2052D-LJ-BK

  • Automatic caliber BALL 352 
  • 15 micro gas tubes on hour, minute, second hands and dial for night reading capability 
  • Chronograph with accumulated time measurement up to 12 hours 
  • World Time display 
  • Shock resistant to 5,000Gs 
  • Water resistant to 50m/160ft 
  • Hours, minutes, subsidiary seconds, day and date 
  • Stainless steel 
  • Ø 42mm, height 13.7mm 
  • Anti-reflective sapphire crystal 
  • Sapphire crystal case back 
  • Screwed-in crown 
  • Crocodile leather strap


  • Black or white