I was disappointed to see that the case is made in China and not Japan, but I guess that is how they keep the price of it so reasonable. The crystal, which is flat inside and slightly convex on the outside, is 6mm thick mineral glass and has an anti-glare coating on the inside. The case back at its thinnest point is 3.3mm thick. The crown uses a similar "O" ring system to Rolex's triplock system. Two "O" rings in the tube and one set deep inside the flat part of the crown which is compressed when the crown is screwed in. It's worked pretty well for Rolex these past few decades, so like Seiko's Darth Vader system, it's a well proven and tested design.
Here is a pic of the inside of my Orca for comparison - Citizen caliber E168
| Images in this message: http://i31.photobucket.com/albums/c382/ocean_2000m/B873-1.jpg http://i31.photobucket.com/albums/c382/ocean_2000m/Cal-E168.jpg |
