NMK920 Tuna SKX007/SRPD Watch Case Bundle: Gold Finish


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

Aptly named for its resemblance to a can of tuna, the NMK920 Tuna SKX007/SRPD Watch Case Bundle: Gold Finish is our take on one of the most original and iconic (some would say extreme) dive watch designs released by Seiko. Now you can cook up your own Tuna in any style you like.

Not just a pretty face, the Tuna was (and still is!) an engineering marvel designed to solve issues professional divers faced at extreme depths, producing many industry firsts - it's iconic shroud, vented straps and L-gaskets just being a few. If you want to learn more about about the history, design and legacy of the Tuna, we did an excellent Dive Deep article that you can find here.

Case Specifications:
Diameter: 44mm
Lug to Lug: 46.5mm
Thickness: 11.3mm (without caseback)
Lug Width: 22mm

- Case Bundle includes Bezel and Crown
- 316L Surgical Grade Stainless Steel Construction
- Fits all original and aftermarket SKX007/SRPD mod parts (except bracelet)
- Water Resistance as OEM

Each case comes in a set inclusive of:
- 2 x 22mm Spring Bars
- 1 x Bezel Click Spring
- 1 x Crystal Gasket
- 1 x Caseback Gasket

Customer Reviews

Based on 17 reviews
Kirk S (Edmonton, CA)
Tuna case build, redux

Dial and hands update. Still an amazing case, thanks Namoki!

Kirk S (Edmonton, CA)
Wicked Tuna!

Namoki has produced a fine tuna case with the usual excellent fit and finish. I really enjoyed this build. Thanks Again!

Jacques Emond (Saint-Jerome, CA)

well built

pisarska jean-paul (Balbala, DJ)
Awesome case

emperor tuna is a difficult watch to wear because of its dimensions. This case makes the experience totally different as the case has a skx007 proportion with a small shroud. no regret buying it!

Chippie B (South Nutfield, GB)
Very classy, bit different

The finish is excellent, the quality is great too. The bezel's movement has a very premium motion as it clunks round.