A Guide to Super Compressors
The term “Super Compressor” is one that is quite often misused these days. Most people associate Super Compressor (SC) with any watch that has dual crowns and an internal rotating bezel, but it’s not that simple. Super Compressor is a trademarked name for specific case designs made by the case manufacturer Ervin Piquerez S.A. (EPSA). They designed a patented case sealing method that actually became more water tight the deeper the watch went. The deeper you went, the more pressure was applied to the case-back, pressing it against the O-ring gasket.Most of the SC case-backs have a spring on them, so that the back was tight without being completely compressed against the case. With increasing water pressure, the back was pressed further against the case increasing water resistance. Another advantage of this configuration is that the O-ring did not have full pressure on it constantly, extending its life. Most SC watches were rated to a depth of 600ft.counter-clockwise fro

How has the RO evolved/improved from the 5402 to the 15400?
So I have read the things to know sticky and many of the other threads about Royal Oaks but I am curious as to what has improved with newer movements and references... I see a lot of the issues are surrounding the 5402 and the quartz versions, are there any issues other than service expense and bezel scratches that still make the 15300 or the 15400 a headache to own at times?

Appraiser in DFW area that handles AP
Any DFW residents here who can recommend a good appraiser who doesn't charge like $200/item? If so please PM me, thanks in advance!

5980 owners?
Any 5980 owners out there care to share the pros and cons of this watch?Is this a PP you can wear everyday?I was thinking about the 5980 and a few different g-shocks for rugged activities. Any thoughts on this watch or wearability?Perhaps the aquanaut a better choice? Or the 5711 white dial?

New strap for my PAM111
Decided to get a new strap for my PAM111, made from 220+ year old Russian Leather from G. Cleverley in London....