NMK939 Fifty-Eight SKX007/SPRD Watch Case Bundle: Steel Finish



Once considered a "Poor Man's Rolex", Tudor has really come into its own in recent times. This NMK939 Fifty-Eight SKX007/SPRD Watch Case Bundle in Steel Finish pays homage to the eternal crowd favourites BB58, a vintage styled diver complete with details such as an ultra slim low profile bezel, top hat sapphire crystal and option for an Oyster Rivet bracelet. The best part is, everything is pre-assembled, making this the perfect plug-and-play dive case. Check out our Fifty-Eight collection for more part ideas!

NMK939 Fifty-Eight SKX007/SPRD Watch Case Bundle: Steel Finish

Case Specifications:
Case Diameter: 39mm
Lug to Lug: 47.5mm
Thickness: 9.5mm (Case only)
Total thickness: 13.5mm (Case with crystal and slim caseback)
Lug Width: 20mm

What's Included?
- Top Hat Sapphire Crystal (Clear AR)
- Ultra-Slim Line Coin Edge Bezel for SKX007 Sloped Bezel Inserts
- Integrated Brushed Chapter Ring (Rehaut)
- Brushed Oyster Rivet Bracelet (Option)
- Matching Sterile Crown

- Caseback Gasket
- Pair of 20mm Springbars

Parts Compatibility:
Fits all SKX007 Sloped Bezel Inserts, SKX007 Crowns, and SKX casebacks and is compatible with all our existing dials and hands. 

Compatible with NH35/36/70/71 etc and NH34 movements for GMT builds.

Customer Reviews

Based on 15 reviews
Alexander P. (Birmingham, GB)

Excellent NMK939 case and bracelet on a GMT build. The bezel is tight, but I'm sure this will loosen off over time.

Philippe B. (Les Echelles, FR)

Great cas, but the bezel dont turn. Is it normal?

Stefan N. (Kuala Lumpur, MY)
Awesome. Almost perfect

The rivets on the bracelet sits too close to the case lugs. The bezel is quite hard to turn. Other than that. One of my favorite mods so far

Robert (Apeldoorn, NL)
First time building

First time modding and I wanted to do a couple because I assumed a learning curve, and to mess around with different styles. I really like the fact that everything is pre-assembled makes it a great case to start as an novice.
I'm pretty happy with how it turned out.

Tom T. (Vancouver, CA)
Very satisfied

Beautiful case with excellent build quality. Screw in links and milled clasp in the bracelet look fantastic as well. Really please with the way that my Black Bay homage turned out.