SKU: 5037539590

MWC "Depthmaster" 100atm / 3,280ft / 1000m Water Resistant Military Divers Watch in a Titanium Case with GTLS and Helium Valve (Automatic)

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Description

MWC "Depthmaster" 100atm / 3,280ft / 1000m Water Resistant Military Divers Watch in a Titanium Case with GTLS and Helium Valve (Automatic)SKU: T100AT 1224 ST SLA The MWC Titanium Depthmaster is our latest heavy duty professional dive watch and is engineered for extreme environments. Designed around real operational requirements rather than cosmetic dive styling, this model combines 100ATM (1000m 3,280ft) water resistance, a sapphire crystal, ceramic bezel and always on GTLS tritium illumination. Unlike many oversized dive watches, the Depthmaster is built to remain wearable for extended

SKU: T100AT/1224/ST/SLA

The MWC Titanium Depthmaster is our latest heavy-duty professional dive watch and is engineered for extreme environments. Designed around real operational requirements rather than cosmetic “dive styling,” this model combines 100ATM (1000m / 3,280ft) water resistance, a sapphire crystal, ceramic bezel and always on GTLS / tritium illumination.

Unlike many oversized dive watches, the Depthmaster is built to remain wearable for extended periods. Large military watches are frequently manufactured in titanium to reduce fatigue — the reduction in weight makes a substantial difference when worn daily for long durations, particularly on a 47mm watch designed for all types of diving from Scuba to Saturation diving.

The watch uses a wider 24mm strap (most military divers use 20mm) for improved stability and security during active use, and the ceramic bezel offers excellent grip even in wet or extremely cold conditions.

This particular variant features a 24-hour military dial for quick time interpretation in operational or low-light conditions.


Tritium GTLS Illumination

The Depthmaster uses GTLS tritium tubes on the hands and markers. Unlike conventional lume, tritium does not require charging from sunlight or artificial light. The watch remains readable continuously, all night, every night and GTLS tritium tubes typically remain useful for about 20–25 years — making it especially suitable for military, security, aviation and maritime use.

The bezel markings additionally use Luminova for high initial brightness when exposed to light.


Helium Escape Valve (Why It Exists)

All MWC 100ATM models include an automatic helium escape valve.

Helium molecules are extremely small. During saturation diving, they can slowly enter the watch case while divers live in pressurised environments using helium-oxygen breathing mixtures. When the diver returns to surface pressure, trapped helium expands and can force out the crystal or damage the crown.

The one-way valve automatically releases the internal gas during decompression, preventing damage to the watch.

This feature is primarily required by saturation divers. Most recreational divers will never need it, but a true professional-grade deep diver must include it to be fully fit for purpose.


Sapphire Crystal

The watch is fitted with an anti-reflective sapphire crystal. Sapphire is significantly more scratch- and impact-resistant than mineral glass and far more durable than acrylic. In real-world service use, the overwhelming majority of cracked crystals occur on mineral or acrylic watches — sapphire dramatically reduces that risk.


Movement

The Depthmaster is powered by the reliable 24-jewel NH35A automatic movement with hacking function, allowing precise synchronisation.
Power reserve: approximately 41 hours.


Specifications

Movement: 24-Jewel Automatic NH35A with hacking (hand-winding capable)
Water Resistance:
100ATM / 1000m / 3,280ft
Crown:
Screw-down, sealed
Helium Escape Valve:
Automatic one-way release valve
Case Diameter:
44mm (47mm including crown)
Thickness:
18mm
Lug-to-Lug Length:
48mm
Case Material: 
Titanium
Crystal:
Sapphire with anti-reflective coating
Crystal Diameter:
31mm
Bezel:
Unidirectional dive bezel with ceramic insert
Illumination:
Tritium GTLS tubes on hands & markers, Luminova on bezel
Lugs:
Spring-bars
Strap:
24mm military NATO webbing strap
Weight:
Approx. 85g


Designed for Real Conditions

Professional divers, maritime personnel and military users often operate in cold, wet and high-pressure environments for extended periods. Watches in this category are intended to be reliable equipment rather than jewellery. The Depthmaster is built accordingly: high water resistance, continuous night visibility, shock resistance and simple operation while wearing gloves.

This is not a fashion diver — it is a functional instrument watch engineered for harsh service conditions.

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 5037539590

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Reviewed in the United States on May 15, 2026
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★★★★★ 5
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I have two dogs, an American Bully and an American Pit Bull Terrier, and both of them love to chew. Most balls last a very short time around here before they are shredded or missing big chunks. This one has actually held up. They chase it, tug on it and sit and chew on it, and it is still in one piece with no pieces breaking off. One of my favorite things is being able to put food inside. I add some kibble or small snacks, and they will happily sit and work on it for a long time. It keeps them busy, gives them something safe to chew, and they get a little reward while they play. When they are done, I just rinse it out and it is ready to go again. If you have strong jawed dogs that usually destroy toys, this ball is worth trying. Mine really enjoy it and I feel better knowing they finally have a ball that can keep up with them.
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★★★★★ 5
My dog LOVES this ball
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Pawtucket, US
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The dogs love the chuck it brand. I don’t know what it’s made of but they go crazy over them. Will not play with another ball. Wonder if it’s “laced” with an addictive scent. Have pits. Very durable. Not able to chew to pieces. Last for about 6 months before there is a small break. I keep a back up because when the ball goes missing the house is in chaos. 😆 🤪
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