The 5100 Ten Day Watch to commemorate the year 2000 has got to be the best of Patek Philippes simple Watch. It is not an automatic movement, I prefer it to the Jumping Hour Watch Ref# 3969, and the Ref# 5970 which is so large, and the world time 5110, 3878 skeleton, and 3940 are all automatic. Outside of the 520, 3970E and the 5970 it would seem to me that the 5100 is a great simple watch, and also more preferable to the Ref# 5998 Gondolo Chronometro
What do people think about the 5100 when talking about all these Automatics and other Mechanical Wristwatches. Certainly it is a shame that the 5100 was not produced into regular production. I will say that the Platinum Watch Produced in 100 to celebrate the Opening of the New Geneva Salon probably is a closes competitor to the 5100.
Patek Philippe is making way too many Automatic Watches. The Celestial Watch 5102 is a great wristwatch, but producing it in Automatic and not Mechanical movement was a mistake I think.