NMK11 Automatic Dive Watch: Fifty-Eight Black



1NMK11 Automatic Dive Watch: Fifty-Eight Black

Want to take the plunge into watch modding but not sure where to start? Our watches are fully assembled with our own components and is a great starting point for someone looking to own a great looking watch that they can easily use as a base for further mods/customizations!

The NMK11 pays homage to the eternal crowd favourites BB58, a vintage styled diver complete with details such as an ultra slim low profile bezel and top hat sapphire crystal.

Watch Dimensions:

  • 39mm Case Diameter
  • 47.5mm Lug to Lug Diameter
  • 20mm Lug Width
  • 13.5mm Thickness


  • NMK939 Fifty-Eight SKX007/SPRD Watch Case with Slim 10ATM Caseback
  • Clear AR Top Hat Sapphire Crystal
  • NH36A from SII - Hacking and Winding movement
  • BB58 Black/Gold Ceramic Bezel Insert
  • Brown Vintage Leather Strap
  • Water Resistant to 100m - Upgradable to 200m with our standard caseback

The NMK11 Automatic Dive Watch is built up of our components and can be further modified/customized - it's compatible with SKX007 bezel inserts. and all hands and dials we sell on our site.

Free International Delivery
  • Yay! This product is eligible for free or discounted express international shipping. Shipping costs will be automatically deducted at checkout.

Customer Reviews

Based on 4 reviews
Vincent T.
Pretty happy with it

I like this watch. Going to modify it but as a base it’s good. The blue leather straps however had some inconsistent coloring, however I was planning on changing otherwise.

Anyway , glad there is a day date wheel included underneath. I’ll swap out the dial once I find one I like.

Alex B. (Gura Vitioarei, RO)

I love it. Looks very polished. The only thing weird is the bezel action. Sounds like a mountain bike and feels a bit wiggly.
And the clasp from the metal BB58 style band needed a little adjustment.

But otherwise it’s great.

Steve D. (Chicago, US)
NMK12 -Great size with a classic look

I was surprised how nicely the watch is assembled. The movement was regulated very well +4 to +6 sec per day when worn normally. I did change the case back to a 200m rated back instead of the slim case back which is 50m. I highly recommend either a single piece military strap or an old school Komfit metal band for this watch. Both look great. The thin bezel doesn't present a lot of grip area so it's easiest to use by gripping at the 12 and 6 position and turning so your fingers can fit between the lugs for a better grip (it turns very easily that way). One question I have is the description says it's using an NH36A, are the day and date wheels still on the movement?

Sean M. (London, GB)
Problems with the Bezel but otherwise a beautiful watch - partly self-created

i was very happy on first receiving and wearing this watch. It is quite a beautiful timepiece. However, i did have difficulty rotating the bezel and dried various tactics. Running it under water, I would then be able to turn it but each time that was just a temporary solution. in the end i took a closer look under the bonnet so to speak and had to remove the bezel to re-insert it. This seemed to fix the problem (there seemed to be a surplus gasket which was perhaps causing the problem) but unfortunately in so doing i damaged the bezel insert which I have now had to replace (i found an acceptable one on Amazon). To be fair to Namoki i didn't contact them to discuss the problem and they perhaps would have offered a solution but as I am in the UK I didn't want to deal with any international postage delays. On the plus side too, I have now learnt how to remove bezel and replace bezel inserts so my first steps into 'modding'. Overall I am happy with my purchase.