SKX Slim Sapphire Caseback: Polished Finish



Sapphire display casebacks are usually quite a bit thicker than normal steel ones in order to maintain the same level of water resistance. We've designed a Slim Sapphire Caseback that's 52% thinner (1.2mm vs 2.5mm!) than our normal Sapphire Caseback for the modder who wants to appreciate their movement and still want their watch to be as thin as possible.

Be sure to also check out our range of rotors for that sweet c-c-combo!

Caseback Specifications:
Thickness: 1.2mm
Water Resistance: 100m


Fits Seiko NH movements (like the ones that we sell) with a Grey Spacer only.

Free International Delivery
  • Your order of S$50 (or equivalent in your local currency) or more gets free standard shipping, and orders above S$200 is eligible for free express shipping! Shipping costs will be automatically deducted at checkout.

Customer Reviews

Based on 283 reviews

Perfect compliment to the case!

OWO (Singapore, SG)

Ok great no complains.

JP R. (Edmonton, CA)

Parts that always fit perfectly!

Markus (Oftringen, CH)
Simple and clean

Gives my case a nice clean touch, very nice thanks

Dan D. (Berkeley, US)
It's A Nice Touch

Yes, this is tad thicker than the solid metal caseback that came with the case I bought. But frankly, I'm not sensitive that I can tell the difference when it's strapped to my wrist. Perhaps there are those who can, but I'm not one of them.

The specialness of being able to see the decorated rotor that I also purchased and to be able to see the balance wheel turning is for me, and me alone. People I meet won't ever see it or know that it's there, my partner (who is one of the few people who ever sees the watch when it's not on my wrist) barely notices it, but I see it every time I put the watch on, and it just makes me feel good that it's there because it was a treat for me.