DIY Kit to Create an Automatic 100ATM Water Resistant Professional Mil

100ATM Professional Diver’s Watch Kit

Build Your Own Timepiece – Engineered for the Extreme

This professional-grade 100ATM kit gives you the foundation to build a rugged dive watch capable of withstanding the harshest conditions on land or under the sea. Designed for serious divers—including those using mixed gases at extreme depths—it features an ultra-durable stainless steel case, sapphire crystal, ceramic bezel, and a helium escape valve.

Whether you're customizing for personal use or assembling for a client, this kit combines military-grade durability with refined functionality. Just add your choice of movement, and you're ready to go.

🧩 Kit Components (Movement Not Included)

This kit is compatible with a wide range of automatic movements, including:

• ETA-2824-2

• Sellita SW200-1

• SwissTP STP1-11

• Seagull ST2130

• Hangzhou 6301

• Valanvron VAL-24

• HK Precision Technology PT5000

• Liaoning Peacock SL-3000

• Ginault 7275

• Landeron L24 (Landeron24)

• Soprod P024

⏱️ Time Indication Components

These bring your dial to life:

• Dial: Your chosen face of the watch

• Hands: Hour, minute, and second

• Indices/Markers: Display the hours and minutes

• Date Wheel: For date functionality

🧰 Case & External Components

Built to protect and perform:

• Case: 316L Stainless Steel 

• Caseback: Solid screw-down rear cover

• Crystal: Sapphire with dual anti-reflective coating

• Bezel: Ceramic, unidirectional, non-reflective

• Crown: Screw-down locking crown

• Helium Escape Valve: Automatic release during decompression

• Spring Bars: Secure strap attachment

• Strap: 24mm NATO Webbing (Included Free of Charge High Quality NATO Strap)

🌊 Why This Kit Stands Out

💪 Extreme Performance

This isn’t just a watch case—it’s a mission-ready platform. With 100ATM (1000m/3280ft) water resistance, a shatterproof sapphire crystal, and a grippy ceramic bezel that performs even in freezing temperatures, every element is tailored for durability.

Unlike typical military diver watches with 20mm straps, this one includes a wider 24mm NATO strap, offering superior stability and comfort in high-stress environments.

🛠 Helium Escape Valve – A Deep Dive Essential

Helium molecules are tiny—so tiny they can sneak past most seals during saturation dives. When this happens, internal pressure builds, putting the crystal and case at risk. This kit's automatic helium escape valve vents that pressure during decompression, protecting your watch from damage.

🧪 Why Helium Matters in Diving

Helium is used in deep diving to avoid nitrogen narcosis. But it also requires careful handling—especially in pressurized environments using helium-oxygen mixes. A built-in helium valve is vital for maintaining both safety and the integrity of the watch.

⚙️ Technical Specifications

• Movement Compatibility: See full list above

• Water Resistance: 100ATM / 1000m / 3280ft

• Case: 316L Stainless Steel 

• Crystal: Scratch-resistant Sapphire with dual AR coating

• Bezel: Ceramic insert, unidirectional, non-reflective

• Illumination: Luminova on hands, dial markers, and bezel

• Crown: Screw-down, locking mechanism

• Helium Valve: Automatic pressure release

📏 Dimensions

• Width: 44mm (47mm incl. crown)

• Thickness: 18mm

• Lug to Lug: 48mm

• Crystal Diameter: 31mm

• Weight: 140g

• Strap Width: 24mm NATO Webbing

💎 Why Sapphire Crystal?

Sapphire is the toughest material used in watchmaking. Scratch-resistant, shatterproof, and thermally strengthened, it protects your dial in ways mineral glass never could. Over 90% of watch damage from cracked crystals occurs in models with mineral glass—not sapphire.

Built for the Harshest Realities. Trusted by Professionals.

From special forces to saturation divers, from expedition leaders to everyday adventurers—this kit gives you the power to build a watch that stands up to anything.

When your gear matters, build something that lasts.