- Product Details
- Shipping and Returns
- The BPZ Promise
- Why Bulletproof Zone?
The Hazard 4 Titanium Bracelet is a Grade 2 titanium link bracelet custom designed for the Heavy Water Diver 50mm tritium dive watch. At 3.2 oz in its longest configuration, it weighs roughly half of a comparable steel bracelet while remaining 100% hypoallergenic — a meaningful difference on a watch this size. The curved-H link geometry pivots around the wrist's natural contours, and the bracelet ships in Black or Silver to match the watch's aesthetic. Lug width is 24mm. Available in Black and Silver variants.
Who this is for
- Heavy Water Diver owners who want a metal bracelet that matches the watch's tough, modern build without the weight penalty of a steel alternative.
- Wearers with metal sensitivities who need a hypoallergenic option that holds up to daily wear, water exposure, and active use.
- Users who want a personalized look — the reversible pin-cover tubes accept laser engraving and can be anodized or coated in accent colors.
Construction and materials
The links are machined from Grade 2 titanium. All machined edges have been slightly rounded to eliminate sharp contact points without producing a soft, over-finished appearance. The deployant clasp is steel, chosen for fatigue resilience, and carries a Hazard 4 logo etch on the face with "TITANIUM" marked on the underside. Side-buttons and a thumb safety bar secure the clasp during wear.
The pin covers between the 24mm lugs are marked "TITANIUM" on one face and blank on the reverse, so the user can choose which side faces out. The covers also accept laser engraving and can be anodized or coated in different colors. Attachment to the watch uses a custom Hazard 4 clover-pin (watch pins sold separately; installation requires a Torx 6 screwdriver, not included). Blue Loctite solution is included and should be applied to the screws during assembly for long-term secure fit.
Fit and adjustment
The primary length adjustment uses three hairpin links on each side of the clasp, accommodating a wide range of wrist sizes. The deployant clasp adds a 3-position micro-adjustment for dialing in an exact fit. Overall bracelet dimensions are approximately 7.1 in. long by 1 in. wide by 0.2 in. deep (18 x 2.5 x 0.5 cm); worn circumference with watch is approximately 10.75 in. For wrists requiring further shortening, a watchmaker or jeweler can remove additional links.
Packaging
The bracelet ships in a black presentation box with a pillow and bracelet retainers. Removable pin covers are packed separately in a flask included in the box.
Specifications
- Compatible watch: Hazard 4 Heavy Water Diver (50mm)
- Material: Grade 2 Titanium (links); Steel (deployant clasp)
- Lug width: 24mm
- Link type: Hairpin, Rounded-H shape
- Removable links: 3 per side
- Clasp type: Deployant with side-buttons and thumb safety bar; 3-position micro-adjustment
- Pin-to-watch: Custom Hazard 4 clover-pin (sold separately)
- Weight: 3.2 oz (longest configuration)
- Overall dimensions: ~7.1 in. L x 1 in. W x 0.2 in. D (18 x 2.5 x 0.5 cm)
- Worn circumference (with watch): ~10.75 in.
- Markings: "TITANIUM" on reversible pin covers (2x); Hazard 4 logo on clasp face; "TITANIUM" on clasp underside
- Colors available: Black, Silver
- Design: Simi Valley, California — Hazard 4 in-house team
- Manufacturing: Imported
- Packaging: Black box with pillow, bracelet retainers, and pin covers in flask
Frequently asked questions
Will this bracelet fit my Heavy Water Diver without modification?
It depends on your wrist size. Three hairpin links per side plus a 3-position micro-adjust clasp accommodate most wrist circumferences straight out of the box. For smaller wrists, a watchmaker can remove additional links. The overall bracelet measures approximately 10.75 in. around the wrist when worn with the watch.
Do I need special tools to install the bracelet?
Yes. Installation requires a Torx 6 screwdriver or bit, which is not included. The package includes Blue Loctite solution; apply it to the screws during assembly to ensure a secure long-term fit. A strap-change instruction guide is available on the Hazard 4 website.
Are watch pins included?
No. Watch pins are sold separately. The bracelet uses a custom Hazard 4 clover-pin for attachment to the watch lugs.
Can I customize the pin-cover tubes?
Yes. The pin-cover tubes between the lugs are reversible — one face is marked "TITANIUM" and the other is blank. They also accept laser engraving and can be anodized or coated in different colors for accent, giving you options to personalize the bracelet beyond the standard Black and Silver finishes.
Is Grade 2 titanium suitable for diving and daily wear?
Grade 2 titanium is a commercially pure titanium alloy widely used in marine and medical applications for its corrosion resistance and hypoallergenic properties. At 3.2 oz, it adds substantially less mass to the wrist than a comparable steel bracelet for a 50mm watch, making it practical for extended daily wear alongside a dive watch.
Can this bracelet fit other 24mm watches?
It depends. The lug width is 24mm and the clover-pin is a custom Hazard 4 design, so direct fit to other brands is not guaranteed. One reviewer has noted successful installation on an Apple Watch Ultra 2 using 24mm adapters, but compatibility with other watches is not confirmed. Contact us if you have questions about a specific application.
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.