NMK309 - SKX/SRPD Slim Flat Sapphire Crystal (for Flat Inserts)
We all know how much of a chonky boy the SKX is and over here at namokiMODS we’re a little obsessed with making it as slim and sleek as possible so we designed a range of Slim Bezels and Crystals to shave off some much needed extra pounds off the SKX007/SRPD.
This NMK309 SKX007/SRPD Slim Flat Sapphire Crystal is designed to give you the slimmest SKX mod possible.
Paired with a flat SKX007 bezel insert, our Slim Flat Crystal and Caseback, you can have a SKX007 build that comes in at a thickness of 12.0mm, that’s 10% slimmer than the stock SKX007 that’s 13.3mm thick!
Note: This NMK309 Slim Crystal is designed to pair our with any of our fixed or rotating SKX007 Slim Bezel and Flat SKX007/SRPD Bezel Inserts only.
Compatibility Guide
| Spec | Details |
|---|---|
| Crystal Diameter | 31.5mm |
| Case Compatibility | SKX007, SKX009, SKX011, SKX171, SKX173, SKX175 and Seiko 5 Sports SRPD Range |
| Crystal Profile | Flat |
| Bezel Insert Profile | For Slim Bezels, For Flat Inserts |
| Movement Compatibility | NH35/36 and NH70/71/72 |
| Gasket Compatibility | SKX007 Crystal Gasket |
I mostly do upgrades like crystals and bezels/inserts. My first SKX was a beaten up eBay find from the Philippines back in 2013. The 7s26 was toast so I disassembled the entire watch for science. Using a dental pic to rub out the nicks, several sand paper grits for scratches and dialux on a dremel for polishing the polished surfaces. I purchased a 7s36 on a forum and commenced to building with the cheapest reproduction parts I could find. At some point an skxa63 beater was purchased from eBay and it contained a beautiful dial and well regulated movement that ended progress with my first skx. Applying everything learned from the first skx the skxa63 became my trophy. Having the first case sitting empty for so long It seemed like a good time to piece together something with as much Seiko DNA as possible. I considered a 4r34 but after owning a Miyota 9075 there was no need for a caller gmt and the dial choices were much more limited as I didn’t want to drill out the dial for the GMT hand. I decided to let my dial choice determine the movement so I purchased a 4r36 and got busy! A few new tools and a watch is born. Dial and hands go well together in my opinion. The only non matching part is the bezel insert font. But it was close to what I was looking for.
Swapping out the crystal for Sapphire is one of my least favorite jobs, but always has such a big impact on the watch. This was no exception. Looks fantastic!
very well made, tight fit and the AR works great!
As recommended to use the slim crystal on the BB GMT pro bezel for the perfect 70s chic retro look. Easy to install n viola!! I manage to install a NH34 GMT movement! After trying many dials thickness. With a slim sandblast caseback. it really feels n wear slim on the wrist
Crystal fits my build perfectly and gives it a great look.
Another excellent option to cut some girth when combined with the skinny bezel. Thanks Namoki!
It is almost flat with the insert and there is no gap between the crystal and the insert
NMK309 - SKX/SRPD Slim Flat Sapphire Crystal (for Flat Inserts)
I got this with the clear at and it looks fantastic and is great quality. Perfect choice to get that slightly slimmer profile for every day wear and an easier ‘under the cuff’ fit for my watch.
The only thing to be careful of is that this has a thicker gasket than normal crystals. I was a bit too rough about installing it and split the gasket slightly. I’m sure it was my fault. I will be installing a fresh gasket asap and I will take more care next time.
Looks great
this crystal is not slimmer than the stock hardlex, at least not the one i received. it measured closer to 3.1mm
Perfect
matched up to the sloped bezel insert perfectly
Easy to fit with supplied gasket
Good standard skx crysta⁷l.
Kinda hard to install, probably because of different gasket. Maybe skill issue on my end.
Good sapphire that works with a 4 hand-stack
Great packaging, great fit
The only mod part which was totally useless was this slim sapphire which doesn't even fit. While the stock oem hardlex was perfect in it's dimensions the namoki slim sapphire was small, to make things worse the gasket provided was too big to even fit into the case. Thinking they gave me the wrong gasket I ordered another 3 piece srpd gasket for the slim sapphire and it was the same story. The gasket being too big to fit into the case and with slim sapphire too small. It would one those reasons or the combination of both which make the slim sapphire unusable for me. I had to use the use the stock hardlex just to complete the mod but it doesn't look with the upgraded slim bezel and slope insert.
Was actually the wrong depth for my bezel - but kept it anyway as love the Red AR! Will use in my next build :-)
A great Crystal - clean, clear and precise
Perfect combined with the slim flat bezel.
beautiful crystal, not used it yet but expect it will be perfect
Nice and thin, work well with the slim bezel.
Great quality, nice choose for slim bezels
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