You can purchase a 3135 for less than $2,800, (if you watch) and you can build a reliable A3135 for less than $1,000 with some gen parts, but it will never be a Rolex 3135. Fewer things in life are finer than a great 1570, 3035 or 3135. They are engineered for a lifetime, with proper care. There was a guy on Antiques Roadshow this week with a GMT (1675, I think). It was given to him by an uncle who wore it through VietNam (bought in PX for $175). This guy wore it through Afghanistan and 17 years of law enforcement. It was still his daily wearer. It was beat up. I doubt the Asian-made movements will do that.