Protek Model 3103 USMC Field Watch Titanium Case Dark Blue Dial

The Protek Model 3103 is a 40mm titanium field watch built around a USMC-embossed caseback, Swiss Pro-Glo T100 tritium illumination, and a Japanese Miyota Super 2035 quartz movement, designed for buyers who need a legible, durable timepiece that functions in low light without any charging. It is offered in a single configuration: dark blue dial with a genuine Italian leather dark tan strap.

Built Around Titanium

The Protek Model 3103's case, crown, caseback, and strap buckle are all titanium. The 40mm case carries IP black plating and a fixed bezel, while the screw-in caseback is embossed with the USMC signature emblem. The titanium crown is fitted with multiple O-rings to maintain the watch's 100-meter water resistance rating. Titanium construction keeps the total weight to 48.4 grams, which reduces fatigue during extended wear.

Continuous Low-Light Legibility

The Model 3103 uses the Swiss Pro-Glo T100 self-powered tritium illumination system, which glows continuously for 25 years without requiring exposure to an external light source. Protek states this series uses the largest tritium tubes available in the line, and that the system glows 100 times brighter than conventional photoluminescent lume. The sapphire crystal carries an antireflective coating to reduce surface glare during daylight reading.

Reliable Quartz Movement

Timekeeping is handled by the Japanese Miyota Super 2035 quartz three-hand movement, which carries a stated four-year battery life. Quartz movements require no winding or positional accuracy management, making the Model 3103 a low-maintenance choice for buyers who want consistent accuracy without mechanical upkeep.

Features

  • Titanium case and hardware: 40mm case with IP black plating, fixed bezel, screw-in embossed USMC caseback, and titanium signature buckle
  • Swiss Pro-Glo T100 tritium illumination: self-powered, glows continuously for 25 years, no charging required
  • Sapphire crystal: antireflective coating for glare-free viewing
  • Miyota Super 2035 quartz movement: Japanese-made, three-hand, four-year battery life
  • Water resistant to 100 meters: titanium crown with multiple O-rings
  • Genuine Italian leather strap: waterproof dark tan leather, 20mm lug width

Specifications

Specification Detail
Case material Titanium with IP black plating
Case diameter 40mm
Case thickness 11mm
Bezel Fixed
Caseback Titanium screw-in, embossed USMC emblem
Crown Titanium with multiple O-rings
Crystal Sapphire with antireflective coating
Dial color Dark blue
Movement Japanese Miyota Super 2035 quartz, three-hand
Battery life 4 years (stated)
Illumination Swiss Pro-Glo T100 tritium, self-powered, 25-year continuous glow
Water resistance 100 meters
Strap material Genuine Italian waterproof leather, dark tan
Lug width 20mm
Buckle Titanium signature buckle
Weight 48.4 grams
SKU PTK 3103

Who This Is For and Isn't

The Protek Model 3103 suits buyers who want a lightweight titanium field watch with continuous tritium illumination and a USMC-themed caseback: active service members, veterans, and civilians who prioritize low-light legibility and low-maintenance quartz accuracy. The 100-meter water resistance and screw-in caseback make it appropriate for general field and water-adjacent use.

The Model 3103 is not a dive watch and is not rated for pressurized or deep-water diving. It carries no rotating dive bezel. Buyers seeking a mechanical or automatic movement will need a different model, as this watch uses quartz only. It is available in one dial and strap configuration; buyers wanting alternate colors should look at other models in the 3100 series.

Common Questions

What makes the tritium illumination different from standard lume?

The Protek Model 3103 uses the Swiss Pro-Glo T100 tritium system, which is self-powered by radioactive decay and glows continuously for 25 years without needing to be charged by sunlight or artificial light. Protek states the system is 100 times brighter than conventional photoluminescent lume, and this model uses the largest tritium tubes available in the series.

Is the Protek Model 3103 suitable for swimming or water activities?

The Protek Model 3103 is water resistant to 100 meters, supported by a titanium crown with multiple O-rings and a screw-in caseback. This rating is generally considered adequate for swimming and snorkeling. It is not rated for pressurized diving, and BPZ recommends consulting a watchmaker before any high-pressure water exposure.

What is the battery life and how difficult is it to replace?

The Miyota Super 2035 quartz movement in the Protek Model 3103 carries a stated four-year battery life. Battery replacement requires opening the screw-in caseback, which BPZ recommends having done by a qualified watchmaker to preserve the water-resistance seal.

Does the strap fit standard 20mm watch bands?

Yes. The Protek Model 3103 has a 20mm lug width, which is a standard size. The included strap is genuine Italian waterproof leather in dark tan with a titanium signature buckle. Any aftermarket 20mm strap can be fitted, though replacing the strap may affect the water-resistance seal at the case.

Can this watch be shipped to any US state?

The Protek Model 3103 is a watch and is not subject to body armor shipping restrictions. No state-level restrictions are known to apply to this product. Under 18 U.S.C. § 931, the body armor prohibition applies to body armor, not to watches; no equivalent federal restriction applies to this item.

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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