Aftermarket exhibition caseback

befobe

T heir website is not very well done.... No info about that... A little bit scary by the way....

Hope they will read this thread...

P Plexigus

The case back is a perfect update for the FOIS as it ostensibly reduces the thickness of the watch and thus increases its wearability. Watching the visible Omega movement is mesmerizing. The case back is packed well and shipped with two tools that make the swap easy under 2 minutes. All in all, the shopping and replacing experience was excellent.

Scarecrow Boat

After seeing this thread, I had ordered version two of SpiralWinder's casebacks and it arrived today. I have a Thomas Priek caseback, which I love, so I will compare against that one.

Firstly, the Thomas Priek case back is very well made. I think I prefer it. It comes with a separate movement spacer and fits beautifully on my 145.022 and Modern Speedy. The SpiralWinder caseback is well made too, but it does not come with a movement spacer, which I believe is due to how much thinner it is. Instead, it uses a rubber o-ring sitting in a groove around the glass to press against the movement when screwed down. When viewing through this caseback, the movement seems to be pressed right up against the glass compared to the breathing room in Thomas Priek's.

Secondly, I had ordered the SpiralWinder caseback to put on my 145.022 (which it is advertised to fit) as my Thomas Priek caseback was ordered for my Modern Speedy. This didn't work out and I am not entirely sure why. It immediately felt like it wanted to cross thread my 145 case. I tried several times with no success to attach it to my 145 case. The OEM caseback as well as the Thomas Priek caseback screw down seamlessly, so I know there are no issues with my case threads. So, the Thomas Priek caseback will reside on my 145.022. The SpiralWinder caseback attached smoothly to my Modern Speedy, which is where it will reside. Hopefully, if anyone ordered this for a 145.022, they will have better luck than I.

Overall, I do really like this version two caseback. I like the design of it and it feels like it belongs on the Speedy. The design of Thomas Priek caseback stands out a bit. The slimness of this back is noticeable on the wrist. It is definitely very low profile. I am happy with the purchase. Still, I think I prefer Thomas Priek's a little more. His feels more robust. Anyways, here are some photos comparing the two...

Thomas Priek

SpiralWinder

S Shez

I found the best way to get it to screw on was to use the tool to turn the caseback halfway in the wrong direction while it's resting on the case until it clicks and then *very* gently start turning it in the right direction.

texasmade

Finally received mine a few days later than anticipated. It took a couple of minutes to swap. The bracelet got in the way but other than that it was a breeze. Highly recommend for those wanting a thinner profile watch.

DoctorEvil

Hi there. Just wondering if the FOIS owners out there who've swapped out their casebacks are able to provide me with an answer to this question: Did you find an antimagnetic dust cover inside when you took the original caseback off?
The reason why I ask is because my watch got magnetised a bit over a year ago and I thought the dust cover was supposed to prevent that happening. My FOIS is currently still under warranty so I don't want to remove the caseback to find out as this might void it.
Thanks in advance for any responses.

texasmade

Mine has one also. I don't think demagnetizing a watch requires a full service under warranty. It's usually just like a minute process that just about any competent watch repairer can do without opening the caseback.