The Seac Devil Knife is a dive knife from Seac – stainless steel, sharp, and built to cut through fishing line, kelp, or anything else that might tangle you underwater. A safety essential for every diver at Langkawi’s pristine blue waters.
Technical Specifications
| Specification | Details |
| Brand | Seac |
| Product | Devil Knife |
| Material | Stainless steel |
| Blade | Sharp tip |
| Sheath | Included |
| Mount | Leg / Calf mount |
| Best For | Line cutting / Emergency |
Key Features
- Sharp cutting edge: Slices through fishing line, kelp, and entanglements fast.
- Stainless steel blade: Corrosion resistant and holds its edge in salt water.
- Secure sheath: Included – keeps the blade safe and you safe.
- Leg-mount ready: Straps to your calf for easy access on every dive.
Suited for Malaysian Dive Sites
The Seac Devil Knife is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Langkawi’s pristine blue waters, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse after every dive – salt corrodes stainless steel.
- Oil the blade lightly with a food-safe oil if storing for a while.
- Keep it in the sheath when not in use – protects both you and the blade.
- Sharpen when it starts to dull.
Final Verdict
A dive knife is safety gear, not a tool. The Seac Devil Knife does its job – cuts what needs cutting, fast and reliably.





Siti Rahman –
The Seac Devil Knife feels sturdy and fits nicely in my hand, even with thick gloves. Used it to cut through some fishing line during a dive and it worked perfectly. Highly recommend for anyone looking for a reliable dive knife.
Imran Hanafiah –
Thank you, Siti, for sharing your experience. We’re glad the Seac Devil Knife performed well and helped you during your dive. If you have any questions about upkeep or features, feel free to contact us.
Mark Tan –
Is the sheath for the Seac Devil Knife easy to attach to a BCD or is it better to use the leg straps?
[email protected] –
Hi Mark, the sheath includes versatile mounting options and can be easily attached to your BCD or secured with the provided leg straps. Both methods provide a stable fit, so you can use whichever is most comfortable for your diving setup.
Eunice Low –
Good quality and the knife is sharp, but the locking mechanism on the sheath takes a bit of practice to use smoothly. Once you get used to it, it’s quick to deploy.
[email protected] –
Thank you for your honest feedback, Eunice. We appreciate your note on the sheath, and we’re glad you found deployment quick after some practice. Please reach out if you need tips or further assistance using the lock mechanism.