The Sidekick - 38mm Steel Pocket Watch Case for NH35

The evolution of the pocket watch mod has arrived!

Specifically engineered "by modders, for modders," this pocket watch case brings a classic, turn-of-the-century silhouette into the modern watch modding era. 

Designed with a sleek, contemporary profile and optimized for the movements you already know and love, this case allows you to craft a bespoke timepiece that sits beautifully in the hand, by your side - or in the pocket.

Why Go Pocket Watch?

A pocket watch isn’t just a timepiece—it’s a conversation. Whether you are paying homage to vintage horology or creating a futuristic steampunk build, this case breaks the boundaries of standard wrist-modding. The result is a case that is:

• Tailor-made for modders — engineered specifically to work seamlessly with a wide range of aftermarket parts.

• Tactile and premium — crafted from heavy-duty 316L stainless steel that feels incredibly substantial in hand.

• Completely versatile — available in three distinct, premium PVD finishes to match any build aesthetic.

Three Finishes: Match Your Aesthetic

We don't believe in one-size-fits-all. Choose the finish that best defines your next masterpiece:

• Matte Black (PVD): For the stealthy, tactical, or ultra-modern minimalist build.

• Sand Blasted Silver: A rugged, bead-blasted tool-watch finish that hides scratches and looks effortlessly industrial.

• Polished Gold (PVD): The ultimate nod to traditional luxury and classic vintage watchmaking.

Technical Specifications

• Case Diameter: 38mm (the perfect sweet spot for modern pocket carry)

• Thickness: 11mm (slim, pocket-friendly profile with case back installed)

• Material: Marine-grade 316L Stainless Steel

• Crystal: Scratch-resistant Sapphire Crystal

• Case Back: Screw-down Sapphire Exhibition Case Back

• Crown: Low-profile, grippy crown

• Water Resistance: 5ATM / 50m

• Dial Compatibility: Standard 28.5mm

• Movement Support: NH35, NH36, NH38, NH70, NH71, NH72, 4R35, 4R36, 6R15, 6R35

What’s Included

• 316L Stainless Steel Pocket Watch Case (choice of Matte Black, Sand Blasted Silver, or Polished Gold)

• Pre-installed Front Sapphire Crystal

• Screw-down Exhibition Sapphire Case Back

• Low-Profile Crown

• Pre-installed High-Quality Case Gaskets

Complete Your Build

This case set is the foundation - here’s what you’ll need to finish your pocket watch build:

• Movement: Compatible with NH35, NH72, 4R35, and more — Shop Movements →

• Dial: Standard 28.5mm fit — Shop Dials →

• Hands: Standard NH series compatible hand sets — Shop Hands →
  

Frequently Asked Questions

Is this case compatible with standard NH35/NH72 movements? Yes. It is designed specifically to house the Seiko NH35 and skeletonized NH72 family of movements, ensuring perfect alignment of the stem and dial.

Do I need special dials for this case? Not at all. It uses standard 28.5mm dials, which means you can use your preferred dial in this build.

Does the case back show off the movement? Yes! The case features a screw-down sapphire case back, creating an exhibition window. It is the perfect opportunity to show off an NH72 skeleton movement or a custom-decorated rotor.

How durable is the PVD coating? Extremely durable. Our physical vapor deposition (PVD) process ensures the Matte Black and Polished Gold coatings are highly resistant to wear and tarnishing.

Is it actually water-resistant? Yes, it is rated for 5ATM (50 meters). While you probably shouldn’t swim with a pocket watch, it is fully protected against accidental splashes, rain, and daily washes if sealed right.