NMK927 62MAS SKX013 Watch Case: Rose Gold Finish


Get 20% off any bezel with the purchase of a watch case! Use discount code BEZELBUNDLE during checkout.

The NMK927 62MAS SKX013 Conversion Case is our take on the grandfather of all Seiko dive watches, Seiko's first professional dive watch launched in 1965 - reference number 6217-8000 or more fondly known in the collecting community as the 62MAS. It's taken on a cult status in recent years, with Seiko launching multiple reissues and it still has a look that's as sharp and sleek in 1965 as it does today.

We've designed this case to be compatible with all SKX013 parts (except the bracelet because of the lug design, but the 62MAS is better on a rubber strap anyways!). Build your very own dream baby 62MAS mod with the NMK927 62MAS SKX013 Watch Case today!

NMK927 62MAS SKX013 Watch Case: Rose Gold Finish

Case Specifications:
Diameter: 38.0mm
Lug to Lug: 46.3mm
Thickness: 9.3mm
Lug Width:20mm

- 316L Surgical Grade Stainless Steel Construction
- Fits all original and aftermarket SKX013 mod parts
- Water Resistance as OEM

Each case comes in a set inclusive of:
- 2 x 20mm Fat Spring Bars
- 1 x Bezel Click Spring
- 1 x Crystal Gasket
- 1 x Caseback Gasket

Customer Reviews

Based on 40 reviews
Maciek (Sienna, PL)
NMK903 SKX013 Watch Case : Polished Finish

very good finished case

Nice field case

Nice combination of brushed and polished surfaces, and the size is perfect for a dress watch.

Jc (Mâcon, FR)
Nice small case

I like 38 mm cases and this NMK 932 is perfect !

J. (Melbourne, US)
NMK931 Field Watch Case Bundle

Everything looked great except the crystal gasket being a little warped. Despite trying to make it work it's still not allowing the crystal to set into the case without moving oddly. Additionally, since the individual pieces of the set like the type of Crystal is not obviously marked I don't even know what gasket to get. Overall, I feel this was a pretty lame experience and as a newbie I can't even troubleshoot it easily on this site.

Francis B. (Tampa, US)
Great case.

If your looking for something different and outside of the box? Then this case checks all the boxes. Easy to build and accepts other mod parts with ease.