Had my FOIS crystal changed to a hesalite as well about a year ago. Can only recommend it, makes a huge different in appearance 馃憤
I reached out to my.wrist Instagram channel. He introduced me to his friend who did the mod.
I didn鈥檛 check for water resistance but also don鈥檛 really care as I keep a speedy away from water anyways.
No problem to change back to sapphire.
I want to do that too. Can it be changed back? Who did the work? Did you have it checked to see if it was still waterproof after the change?
Shoot me if it鈥檚 been said a million times before but I鈥檓 a newbie, very keen one mind!
What does FOIS stand for ?
Mine has a hesalite conversion done by Adam @ LewisWatch. The case is not modified and it uses the standard Speedy Pro hesalite and tension ring. It passed pressure tests and maintains water resistance (light splashes, but not water proof). I have the original sapphire and it can be changed back at anytime no problem according to Adam. I bought the watch completely modded as he does not do individual mods like that from what I know. Maybe if you have a watch serviced by him he can do that for you...
Photo credit on this goes to Adam. My watch is far left.
I am curious about your definition of water resistance there. The original watch when new passes a pressure test to 50m and is in fact fully water proof to that level. The Hesalite crystal Pro is likewise. If yours is only fit for light splashes as you say then in fact it鈥檚 water resistance is no longer as effective as the original which is what many of us suspected may be the downside of this mod. Perhaps I am reading too much into your words but it either passes to 50m or it doesn鈥檛, light splashes don鈥檛 really come into it!
I've never heard of 50m water resistance being ok to actually dive to that level. It's more of a marketing term from a lab test than what really should be done in practice when it's more ok for just light splashes. There's no way I'm taking a chronograph underwater anyway for that matter even if someone else did it ok (like those people on YouTube doing their own water tests on cell phones without ip67/8 rating ok).
https://www.prestigetime.com/page.php?waterresistance
I'd like to do the mod, but I want 100% assurance that moisture will not enter the watch through the hesalite.
I'd like to do the mod, but I want 100% assurance that moisture will not enter the watch through the hesalite.
