Protek Model 3101 Titanium Field USMC 40mm Watch

The Protek Model 3101 is a 40mm titanium field watch built around a USMC-emblem caseback, Swiss Pro-Glo T100 tritium illumination, and a Japanese Miyota Super 2035 quartz movement. It pairs a sapphire crystal with antireflective coating and 100-meter water resistance with a genuine Italian waterproof leather strap in dark brown. The watch ships in one configuration: black dial with dark brown leather strap.

Built to Last in the Field

The Protek 3101's case, crown, and caseback are all titanium. Titanium offers a high strength-to-weight ratio, which keeps the total watch weight at 48.4 grams while maintaining a durable enclosure. The crown is fitted with multiple O-rings to support the 100-meter water resistance rating, and the screw-in caseback carries an embossed USMC emblem, machined into the titanium rather than applied as a decal.

Tritium Illumination Without Charging

The Pro-Glo T100 system uses Swiss-made tritium tubes (the largest available for this series) to produce continuous illumination for up to 25 years without exposure to an external light source. Unlike photoluminescent lume that must be charged by light before it glows, the tritium system is self-powered. Protek states it glows 100 times brighter than conventional photoluminescent alternatives, making the dial readable in low-light conditions without any preparation.

Reliable Movement, Readable Crystal

The Miyota Super 2035 is a Japanese quartz movement with a stated battery life of four years, reducing the frequency of service intervals in the field. The sapphire crystal sits above the dial with an antireflective coating on the inner surface, cutting glare that would otherwise obscure the dial in bright outdoor conditions. Case thickness is 11mm and lug width is 20mm, fitting a wide range of aftermarket straps if the included leather strap is ever swapped out.

Features

  • Titanium construction: 40mm case, crown, and screw-in caseback, all titanium
  • USMC emblem caseback: embossed signature emblem machined into the screw-in titanium caseback
  • Swiss Pro-Glo T100 tritium: self-powered illumination rated for 25 years of continuous glow, no charging required
  • Sapphire crystal: antireflective coating for glare-free viewing
  • Miyota Super 2035 movement: Japanese quartz, 3-hand, 4-year battery life
  • Italian leather strap: genuine waterproof leather in dark brown with titanium signature buckle

Specifications

Specification Detail
Case diameter 40mm
Case material Titanium
Case thickness 11mm
Lug width 20mm
Weight 48.4 grams
Crystal Sapphire with antireflective coating
Movement Japanese Miyota Super 2035 quartz, 3-hand
Battery life 4 years
Water resistance 100 meters
Illumination Swiss Pro-Glo T100 tritium, 25-year continuous glow
Strap Genuine Italian waterproof leather, dark brown
Buckle Titanium signature buckle
Caseback Titanium screw-in with embossed USMC emblem
Dial color Black
SKU PTK 3101

Who This Is For and Isn't

The Protek 3101 suits buyers who want a field-capable titanium watch with a USMC connection, whether active duty, veterans, or collectors who value the emblem detail. The tritium illumination makes it a practical choice for anyone who needs reliable low-light readability without charging the dial beforehand. The 40mm case and 20mm lug width fit a broad range of wrist sizes.

The Protek 3101 is not a dive watch and is not rated or designed for diving use despite its 100-meter water resistance. It is available in one configuration only (black dial with dark brown leather strap) and does not include additional strap options or a metal bracelet. The Protek 3101 includes no GPS, compass, or altimeter.

Common Questions

Does the tritium illumination require charging before use in the dark?

No. The Protek 3101 uses a Swiss Pro-Glo T100 tritium system, which is self-powered and glows continuously for up to 25 years without exposure to any external light source. Unlike photoluminescent lume, the tritium tubes in this watch do not need to be charged by sunlight or artificial light before they produce a visible glow.

What movement does the Protek 3101 use, and how long does the battery last?

The Protek 3101 runs a Japanese Miyota Super 2035 quartz movement with a 3-hand display. Protek states a battery life of four years for this movement, which reduces how often the watch needs to be serviced or have its battery replaced during extended use.

How water resistant is the Protek 3101, and is it suitable for swimming?

The Protek 3101 is rated water resistant to 100 meters, with a titanium crown fitted with multiple O-rings to support that rating. The watch is not described as a dive watch and carries no dive rating; buyers intending scuba or pressurized water use should confirm suitability before purchasing.

What strap does the Protek 3101 come with, and can it be swapped?

The Protek 3101 ships with a genuine Italian waterproof leather strap in dark brown, secured by a titanium signature buckle. The lug width is 20mm, which is a standard size that accommodates a wide range of aftermarket straps if the buyer prefers a different material or color.

Can this watch ship to any US state?

The Protek Model 3101 is a watch, not body armor, and is not subject to the New York or Connecticut body armor shipping restrictions. However, tritium-illuminated watches are subject to US Nuclear Regulatory Commission regulations governing tritium devices. Buyers should confirm import or export compliance with applicable regulations before ordering for international destinations.

Bulletproof Zone will ship orders as soon as possible. For example, if you purchase three items, they will be shipped to you based on lead time and availability. This way you get as much of your order as soon as possible, which means that your order may come in separate packages, especially if you order products from different manufacturers.

We will bear the shipping cost for products returned because of product defect, misrepresentation, or false description. Afterward, we will initiate a full reimbursement should you decline an offer to replace the item with the same item of equal value and assured quality.

Order Confirmation:

As soon as you place your order with Bulletproof Zone, you will receive an order confirmation e-mail. This means that your order has been logged in our system and your credit card has been pre-authorized for the purchase. Afterward, we contact our suppliers to confirm the availability of the product you are ordering for immediate shipment. If your item is on backorder or unavailable, we will cancel the pre-authorization and duly inform you via e-mail.

Order Shipment:

Orders are shipped within five business days from the date of your order unless specified otherwise on the product page. The product page will contain the most accurate estimate on shipping and lead times. Shipping and lead times provided on the product page are our best estimates based various factors including order volume, information from our manufacturer, raw material fluctuations, etc., and may vary due to these factors. 

You will receive an email containing the tracking information of your order after the order has been shipped to your location. If you do not receive tracking information from us within seven business days of the lead time specified on the product page, feel free to follow up with us at orders@bulletproofzone.com.

Bulletproof Zone is not responsible for lost or stolen packages. A tracking number will be provided when the package is shipped. It is the buyer’s responsibility to provide a safe place to receive mail. Once an item has been marked as delivered by the carrier, the seller is not responsible should that item go missing. 

Some of our products are carried by manufacturers in various countries. Due to the nature and cost of the products that Bulletproof Zone sells, you may be charged additional import duties upon delivery. Our support team can help in investigating abnormally high import duty charges but we are unable to cover the cost of any import duties.

Damages:

We take full responsibility for any obvious damage to your product caused by wrong packaging or delivering an already defective product. Please inspect the packaging of your item(s) when they arrive, if you notice any damage, you should document it when signing for delivery. If the item(s) contained in the package arrives damaged, please send photos to support@bulletproofzone.com, and we will process an insurance claim on your behalf. 

Returns and Cancellation Policy:

We back all our products with a customer satisfaction guarantee, so we created a fair return and cancellation policy.

All sales are final. No Refunds, No Cancellations. In most cases, once the order is processed, it is final and not cancellable. We may allow exceptions due to an order error or wish to return your order after delivery for any reason other than a product defect or misrepresentation. Any cancellation request is subject to an administration and cancellation fee equal to 10% of your order with a minimum of $35, whether order shipment is successful or not. 

All sales are final on all closeout items and for custom manufactured bulletproof clothing once the manufacturing process has begun or not returnable unless there is a product defect or misrepresentation. Applicable to brands such as MC Armor, Israel Catalog, BulletBlocker, Tacticon Armament, Wonder Hoodie, and others. 

Before returning any product, you MUST obtain a return authorization from our customer service representative. We can only process AUTHORIZED returns for items.

To make a Return or Exchange: 
  • Obtain authorization for return or exchange by emailing us at support@bulletproofzone.com explaining the reason for the return or exchange.
  • Please use or indicate your order number as attention

Return or exchanges request submission must be within 14 calendar days upon receipt of shipment unless noted otherwise on the product description page.  Your return must be in original packaging and unused.

We encourage using USPS flat-rate shipping in returning products to receive a shipping expense refund. Buyers must ensure all returned parcels delivery receipt AND signature confirmation. We highly recommend insuring your parcel as we cannot issue a refund for an item that we do not receive back should it get lost/damaged during transit.

Refunds:

Should an item be returned because it was defective, misrepresented, not as described, etc., Bulletproof Zone will issue a full refund and will reimburse the customer for all shipping expenses associated with the return.

Please allow 5-10 business days from the time the item is received to process a refund. Refunds will only be issued to the original credit card that you use when placing your order.

We stand behind our products 100%!

By purchasing any of our items, the buyer certifies they have read and agree to our shipping, return, and privacy policies.

The Bulletproof Zone Promise

When you buy body armor, you're buying your safety. We don't take that lightly. Here's what every order from Bulletproof Zone includes.

1. Authorized dealer of every brand we carry

Every plate, vest, and carrier we ship comes from the manufacturer directly to our warehouse. We don't sell gray-market product, surplus, or returns. That means factory-fresh stock, the full manufacturer warranty, and real after-sale support — the kind only an authorized dealer can offer.

We maintain authorized-dealer relationships with America's leading body armor brands, including Spartan Armor Systems, AR500 Armor, RMA Defense, Shellback Tactical, Caliber Armor, DFNDR Armor, Protection Group Denmark, BulletSafe, BulletBlocker, and over 40 more.

2. Best price, guaranteed

If you find a lower price at another authorized dealer of the same product within six months of your purchase, we'll refund the difference.

Why the "authorized dealer" requirement? Because gray-market and surplus armor may not be genuine, may have a compromised supply chain, and almost never comes with a manufacturer warranty. We won't price-match against products that may not actually protect you.

3. Free fitment consultation

Body armor only protects you if it fits. Email us a photo and your measurements before you order, and one of our specialists will help you size your carrier and plates correctly — at no charge, no obligation.

4. Trusted by thousands of customers

Bulletproof Zone has been a trusted authorized dealer of America's leading body armor manufacturers for over five years. We have over 4,000 verified Trustpilot reviews from real customers across all 50 states.

Price Match Guarantee — Terms

  • You must have purchased the item from our website before requesting the price match.
  • Discounted items and "free with purchase" items are not eligible.
  • The item must be in stock on the competitor's website at the time of your request.
  • The price match is valid for six months from the date of your purchase.
  • The competitor must be an authorized dealer of the product. Auction sites (eBay, Overstock), discounters, and gray-market resellers do not qualify.
  • The competitor must operate an online store. Brick-and-mortar-only retailers do not qualify.
  • Price match applies to the item price plus shipping. Sales tax is excluded.

To request a price match, email us a link to the product on our site and the same product on the competitor's site within six months of purchase. We'll process the refund.

Why Bulletproof Zone?

At Bulletproof Zone, we are passionate about protecting lives. Every piece from our catalog is designed and rigorously tested to provide the highest quality of protection you need from firearms, explosives or even close quarters combat.

We’ve partnered with various manufacturers that operate within the United States under a strict set of guidelines both on a national and corporate level so that when you shop with us, you will be able to select from the highest quality body armor, ballistic plates and tactical gear available on the market.

Whether you are a military service member looking to find your own gear, a professional that operates in the security field, or an avid firearms enthusiast that capitalizes the importance of safety when shooting, our tactical gear will provide you the level of protection you need.

Any questions or concerns? Please call us at (408)-909-4938 or email us at support@bulletproofzone.com and a member of our professional support team will be in touch with you as soon as possible.

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