Ball watch company trainmaster worldtime gm2020d s1cj sl in 2010 ball watches werethe 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 embrac