NMK354 - SSK Domed Sapphire Crystal for Sloped Inserts




Love the Seiko GMT SSK but wished you could swap the bezel insert out with a sloped one? This NMK354 SSK Domed Sapphire Crystal is designed to fit all our SKX007 Sloped Bezel Inserts perfectly.

Modding your SSK with a sloped bezel insert is a breeze:

  • The first step is, of course, getting this crystal
  • Pair it with any of our SSK Bezels (please note that the stock SSK bezel is not compatible with SKX007 inserts).
  • Finally, select one of our sloped SKX007 Bezel Inserts to complete your mod.

Need more SSK crystal gaskets? Pick them up here to ensure you have everything you need for a smooth upgrade!

Our sapphire crystals have Anti-Reflective (AR) coating at the bottom side of the crystal. The AR coating comes in two colours - Blue and Clear AR. 

Comes attached with 1pcs SSK Crystal Gasket. Need additional SSK crystal gaskets? Pick them up under Add-Ons above to ensure you have everything you need for a smooth upgrade!

Fits all our SKX007/SRPD Sloped Inserts installed on our range of SSK bezels.


Compatible with Seiko 5 SSK GMT Collection: SSK001, SSK003, SSK005 etc when installed with our SSK Bezels and SKX007 Bezel Inserts

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 5 reviews
Jacob S. (Roseville, US)
Excellent crystal

This crystal fit my SSK perfectly. Installed nice and easy and looks so much better.

Eamon L. (Bangkok, TH)
Perfect fit for ask with original bezel

It’s it’s perfectly

K.X. (Singapore, SG)

Fits prefectly !


Perfect fit and quality.

Usman G. (Lahore, PK)
SSK Double Dome Sapphire Crystal

Excellent, it couldn’t be better.