Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product Information
Seac Titanium Knife is a lightweight scuba diving knife built for divers who want a reliable cutting tool without extra weight on their rig. It pairs a 3.66 inch titanium blade, combining a smooth edge and a serrated edge, with a flat handle and a symmetrical "Double Release System," and the complete blade-and-handle package weighs just 3.52 oz and measures 8.26 in overall.
Who it is for
This knife suits scuba divers who want a compact, low-weight backup or primary cutting tool for line, net, or kelp entanglements. Because the Double Release System lets the knife be released and re-engaged with either hand and from either side, it works equally well for left-handed and right-handed divers. The flat handle profile and low weight suit divers looking for a very lightweight knife.
Key details
- Blade: 3.66 in, titanium, with a smooth edge and a serrated edge
- Total length (blade and handle): 8.26 in
- Total weight (blade and handle): 3.52 oz
- Handle: flat profile with symmetrical Double Release System for ambidextrous release and locking
- Mounting: two included straps secure the scabbard to the calf or the forearm
Compatibility and sizing
It is offered in one option, Black/Titanium (MPN 0550022520000A), with two straps to fasten the scabbard on the calf or forearm.
What's in the box
- Seac Titanium knife
- Scabbard
- Two mounting straps
DiveCatalog.com is an authorized Seac dealer and a dive shop based in Irvine, California, serving divers since 2003. Call or chat with us at 888-701-4017 if you have questions about mounting, fit, or compatibility with your current setup.
- Lightweight build: Total blade and handle weight is 3.52 oz, making it an easy add to any dive setup.
- Titanium blade: The 3.66 in blade is made of titanium.
- Dual edge design: The blade has both a smooth edge and a serrated edge.
- Compact overall length: Blade and handle together measure 8.26 in.
- Double Release System: A symmetrical, flat handle design lets divers release and engage the knife with either hand and from either side.
- Two included straps: Secure the scabbard to the calf or the forearm for flexible mounting.
- Care reminder: The scabbard is not watertight, so Seac recommends rinsing the knife and scabbard separately with fresh water and drying them well after every dive, even if the knife was only worn and not used.
| Brand | Seac |
| Model | Titanium Knife |
| MPN | 0550022520000A |
| Barcode | 887728126089 |
| Option | Black/Titanium |
| Blade material | Titanium |
| Blade length | 3.66 in |
| Blade edge | Smooth edge and serrated edge |
| Total length (blade and handle) | 8.26 in |
| Total weight (blade and handle) | 3.52 oz |
| Handle type | Flat, symmetrical |
| Release mechanism | Double Release System |
| Mounting | Calf or forearm, via two included straps |
- Seac Titanium knife
- Scabbard
- Two mounting straps
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
Can both left-handed and right-handed divers use the Seac Titanium knife?
Yes. The knife uses a symmetrical, flat handle with a Double Release System, which lets a diver release and re-engage the knife with either hand and from either side of the scabbard, so it works the same way for left-handed and right-handed divers.
Where is the Seac Titanium knife meant to be mounted?
It comes with two straps that let you fasten the scabbard to either your calf or your forearm, so you can choose the mounting location that best fits your exposure suit and gear configuration.
Does the Seac Titanium knife include a sheath?
Yes. It ships with a scabbard along with two straps for mounting it to the calf or forearm. The scabbard is not watertight, so it should be rinsed and dried separately from the knife after every dive.
How should I care for the Seac Titanium knife after diving?
Rinse the knife and the scabbard separately with fresh water after every dive, even if the knife was only worn and not used, then dry both well with fabric or absorbent paper, since the scabbard is not watertight and can trap moisture.

















