Ball Watch Company Trainmaster Worldtime. GM2020D-S1CJ-BK. 

In 2010, Ball Watches were the first watchmakers to design a mechanical movement with a day and date function combined with a 24 hour time zone display. This year, Ball has impressed us again and designed a brand new Ball Trainmaster Worldtime watch, a new edition featuring an improved world time module and a sleek and sophisticated design. 

The Ball Trainmaster Worldtime watch boasts a finely chiselled stainless steel case which embraces the Swiss made automatic BALL RR1501-C movement that can be watched hard at work through the open case back where the oscillating weight twirls with every movement of the wrist. Housed beneath the scratch resistant sapphire crystal glass is a classic black dial set with luminous micro gas tubes allowing optimal readability even in the dark, a feature that will glow for up to 25 years without requiring recharge. The dial also features a world time module where a 24 hour disc rotates automatically alongside the three central hides to indicate the time in 24 different time zones. The timepiece is completed by a stainless steel bracelet and folding clasp for effortless wear and a luxurious finish.