Speedmaster Reduced 3539.50 vs. 3510.50
Answer:
The 3539.50 is 39mm with a sapphire crystal. The 3510.50 is 35.5mm with a Hesalite crystal (plastic). Both are automatics. So, there is your difference. Hope this helped?
phil **Speedmaster Professional-3570.50** **Speedmaster Professional Moonphase-3576.50** According to its maker it takes 14 months to make 195 individual parts and 80 hand operations to assemble. When finished it was apparent it was 50 years ahead of its time. It is currently undergoing modifications to handle even more extreme conditions and temperature variations: Omega Speedmaster Professional source: Omega The following link to AWCI will help you find a Certified Watchmaker/Repair Facility in your area:http://www.watch-clock-makers.org/
Answer:
Sorry MECO, but you are wrong... both are 39mm, the differences are the sapphire crystal and higher water-resistant in the newer version. The case is exactly the same size. Regards,
Rui
Rui Silva - http://watchescorner.blogspot.com/
Answer:
Additional info: Omega website lists the Speedmaster Reduced as having a 35.5mm case size, when it's actually about 39mm. Here is Omega's official explanation: "At the time the Speedmaster Reduced was launched the diameter was measured between 12 and 6 o'clock on the case body (without the bezel/tachymeter scale). This was common practice and we kept the dimension (35.5 mm) even for new Speedmaster Reduced models to avoid any confusion with the former versions." (info from John Rochowicz). So, the correct sizes are the ones listed: 39 and 42mm. Rui Silva - http://watchescorner.blogspot.com/
Answer:
Thanks for that clarification about the sizes. That was really confusing me because the watches I've tried on seemed a lot bigger than 35.5mm.
Answer:
CORRECTION: The sentence "So, the correct sizes are the ones listed: 39 and 42mm" is out of context (i made a copy-paste from a longer text), since the 42mm refers to the Speedmaster Pro, not the reduced. All reduced are 39mm. Sorry for the error. Rui Silva - http://watchescorner.blogspot.com/