Introducing the Divecore FKM Rubber HP Professional Diving Watch Strap
Dive into Durability: Divecore HP Professional Diving Watch Straps Now Available at BluShark
We love it when the best ideas come from our customers. One recently reached out looking for a very specific watch strap, but it was something we didn’t have in our store at the time. They needed a rubber strap with OEM-sized quick-release fat spring bars that could be easily swapped out without damaging the strap. So, we got to work and began our search for the best solution.
The result? The Divecore HP Professional Diving Watch Straps - A strap for our most detail-oriented customers, built to handle the most demanding environments!
Who is this strap best for?
If your watch has OEM fat spring bars, the DiveCore HP strap is an excellent match. Built for extreme conditions, this strap is a reliable choice for divers and adventurers alike. Its quick-release spring bars make swapping straps effortless, whether you're transitioning from a rugged work strap to a more casual option after hours or swapping from a sporty strap to something more formal. With a secure locking keeper to keep your strap in place and precise adjustment holes to give you the perfect fit, the DiveCore HP is a great choice all around! Designed to pair seamlessly with Swiss dive watches, but its durable rubber construction makes it versatile enough for most timepieces that take fat spring bars.
Key Benefits:
If your watch came with OEM fat spring bars, it's essential to stick with fat spring bars. Using standard spring bars can result in a loose-fitting strap, which over time may wear down the spring bar holes in your watch lugs. This could eventually lead to your strap falling off and your watch dropping from your wrist. Additionally, once the lug holes are worn, switching back to fat spring bars might not provide the secure fit your watch originally had.
Will this strap work with my watch?
If your watch came with OEM fat spring bars, this strap will fit perfectly! However, if your watch uses standard spring bars, you may find that this strap isn’t a perfect fit. The DiveCore HP spring bars have a 0.9mm tip, slightly thicker than the standard 0.7mm tip. If the strap isn’t compatible with your watch, you can easily swap the fat spring bars for standard ones or contact our team for a free return.
Meet the Divecore Collection
Now available through BluShark:
- Divecore - FKM Rubber HP Professional Diving Watch Strap - Blue
- Divecore - American FKM HP Professional Diving Watch Strap - Orange


While both straps share the same rugged design and high-performance features, the orange variant is crafted from American FKM Rubber, known for its superior durability and resistance to extreme conditions.
Built for Performance
The Divecore straps are engineered for reliability under pressure, making them ideal companions for your dive watch:
- Mono-Accordion Pattern: Ensures flexibility without interfering with the keeper, allowing for a secure and comfortable fit.
- Flat Pin Buckle & Adjustment Holes: Provide easy micro-adjustments for a personalized fit.
- Locking Feature: Keeps your strap securely fastened, even under dynamic underwater conditions. (See photo below) If you're unfamiliar with a watch strap locking mechanism, it works by threading the tail end of the strap through a keeper, which typically has a small protrusion on the inside that fits snugly into a corresponding hole on the strap, locking them together for a secure and reliable fit.
American FKM Rubber: A Step Above
The Divecore American FKM HP Professional Diving Watch Strap sets a new standard with its advanced material:
- Heat Resistance: Withstands temperatures up to 300°F (150°C), making it perfect for extreme environments.
- Chemical Resistance: Resists oils, fuels, solvents, and acids better than most elastomers.
- Durability: Built to last, even when exposed to sweat, saltwater, and moisture.
- Elasticity: Offers flexibility without compromising strength, ensuring all-day comfort.
Specifications
- Spring Bars: 2.5mm ISO-rated Japanese diver’s spring bars (pre-installed)
- Material: American FKM Rubber (Orange) / Standard FKM Rubber (Blue)
- Dimensions: 78mm x 125mm length, 4mm thickness
- Hardware: Premium brushed stainless steel with adjustable locking rubber keepers
Note: The extra material around the spring bar (approx. 3.2mm from the pin) may result in a tight fit on some watches. We offer free, hassle-free returns if it’s not the perfect fit.
Why Choose Divecore Straps from BluShark?
We've chosen to carry Divecore straps for their thoughtful design and durable 2.5mm pre-installed spring bars, perfectly suited for watches with larger lug holes, like many Seiko Dive Watches. Whether you're diving into the ocean or tackling everyday adventures, the Divecore HP Professional Diving Watch Straps keep your watch secure with rugged style.
Ready to upgrade your dive watch? Explore the new Divecore collection at BluShark and experience the perfect blend of strength and sophistication.
Hi
Does this strap come in black or other colors besides blue and orange?
Thanks.
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