What watch did Japanese Prime Minister Shinzo Abe wear at the Rio Olympics closing ceremony?

　　On 8 22, the day before yesterday, the 2016 Rio Olympics closing ceremony took place at the Maracanã Stadium in Brazil. The closing ceremony traditionally broadcasts a promotional video for the host city of the next Olympic Games, which will be the Tokyo Olympics. This 8-minute short film truly dazzled the world, featuring numerous classic cartoon characters. Japanese Prime Minister Shinzo Abe also made frequent appearances in the promo, ultimately appearing live at the venue to pass the ball to Rio and electrify the crowd.

　　Naturally, in the promotional video, Abe raises his wrist to check the time via his watch, indicating that he needs to make it to the Rio Olympics on time. To ensure he arrives promptly, he transforms into Mario, uses Doraemon's gadgets to travel from Tokyo through the earth to Rio on the other side, and makes it to the closing ceremony. Many watch enthusiasts will therefore ask: what watch was Abe wearing in the video?

　　The watch worn by Abe is precisely theOmega Constellation watch, a bulky case design that was popular from the 60s to the 70s. Because of its silhouette, it is known as a "C-shape" or cushion case. Such watches are not expensive nowadays and can be acquired for around 5000 renminbi.

　　Why did Abe wear theOmega watch? The reason stems from Olympic regulations, which prohibit the use of other watch brands because Omega is the official timekeeping partner of the Olympics. Furthermore, another Olympic sponsor, Toyota's Crown, also appeared in the video. This inevitably leads one to suspect that the "Tokyo Eight Minutes" was packed with hidden advertisements—full of calculated moves!

　　This brings up a question: why didn't Abe simply use the Anywhere Door when he transformed into Mario and relied on Doraemon's help to travel straight through the earth from Tokyo to Rio on the other side to make it to the closing ceremony?