SEAC Partner Test: The essentials of freediving at an unbeatable price.

To learn how to get the most out of your gear underwater, discover the AquaExposure Training.

The world of freediving and spearfishing demands absolute concentration, where every piece of equipment must fade into the background to allow for pure sensory experience. Before even talking about depth or dive time, safety relies on a rigorous management of surface intervals. It is precisely with this in mind that the SEAC Partner was created. We are faced with an instrument that does not seek to impress with superfluous features or complex screens. It focuses on a single, vital mission: to provide essential data to secure your dives without weighing down your wrist or breaking the bank. The approach is direct, almost Spartan, but it addresses a very specific need that many practitioners are looking for. Let's analyze together what this freediving watch truly offers and whether it deserves to accompany you on your next outings.

Overall score: 2.4/5

O1 Algorithm (1.5/5)

This computer is specifically designed for freediving and spearfishing. It does not incorporate any decompression algorithms. Its primary function is to measure depth and time, which are essential elements for managing surface intervals in freediving. There are no settings for gradient factors, nor is it compatible with diving using mixed gases. This is a deliberate choice made by the manufacturer to maintain maximum ease of use.

O2 Multigas (1.5/5)

Following the same logic as the lack of a decompression algorithm, the SEAC Partner does not manage any gas mixtures. There is no support for Nitrox, Trimix, or rebreathers (CCR). The integration of gases via transmitter is also absent. This is not necessarily a flaw, but rather an inherent characteristic of its design as a computer dedicated to freediving.

O3 Screen (1.9/5)

The SEAC Partner is equipped with a segmented LCD screen, typical of entry-level freediving watches. The display is clear underwater, indicating depth, dive time, and surface interval. It lacks advanced backlighting or a color display, which limits readability in very low light conditions. The screen size is approximately 1.2 inches, offering an acceptable compromise between compactness and readability.

O4 Battery Life (2.9/5)

Powered by a user-replaceable CR2032 battery, it offers excellent battery life for its category. This is a significant advantage for travel or extended sessions where access to a charging source is limited. Replacement is simple and quick, minimizing downtime between your outings.

O5 Connectivity (1.0/5)

No connectivity features (Bluetooth, USB) are present. This means there is no download of the dive log to a PC or smartphone. The complete history of your dives (up to 99 dives) can only be viewed directly on the watch's interface. There is no companion app for analyzing your profiles afterward.

O6 Instruments (3.7/5)

This model does not include a digital compass or advanced navigation functions. Its focus is purely on diving metrics. It provides vital information with such direct readability that even when wearing thick gloves, consulting it remains intuitive. It is a raw, no-frills measuring tool that does exactly what it's supposed to do.

O7 Robustness (3.3/5)

Its lightweight plastic casing makes it comfortable for extended wear, whether in or out of the water. The strap is designed to provide a secure fit over wetsuits. While not designed for extreme impacts, it is durable enough for its intended use in freediving and spearfishing. It is certified for a maximum depth of 100 meters.

O8 Price & Customer Support (3.7/5)

Priced around €110 to €115, it stands out as one of the most competitive entry-level computers on the spearfishing market. Its price-to-performance ratio is exceptional considering its specific capabilities. Regarding support, SEAC's customer service reputation is quite average. Unanswered emails from the Italian headquarters are sometimes reported on forums. It is essential to go through a persistent reseller in case of any problems.

The SEAC Partner is perfect for beginner freedivers and spearfishers looking to acquire their first dedicated measurement tool. It's ideal for those who want to ensure safe surface recovery times without breaking the bank. It's a very sensible purchase for targeted practice. However, for divers considering transitioning to scuba diving or who want to analyze their profiles using PC software, this choice will quickly prove limiting. It is crucial to understand that this device does not provide any decompression modes.

As mentioned in the detailed analysis, the after-sales service of SEAC requires a certain level of attention. The reputation is quite average, with user feedback indicating difficulties in obtaining direct responses from the Italian headquarters. To ensure effective warranty support, it is highly recommended to go through a trusted local reseller who can act as an intermediary and defend your interests with the brand.

The choice of a user-replaceable CR2032 battery is a major advantage for practicality. Whether you are on a remote cruise or in everyday use, you are never dependent on a charging cable or an electrical outlet. Simply slip a spare battery into your waterproof bag to ensure the continuous operation of your device. This is a pragmatic approach that aligns well with the minimalist spirit of this computer.

To find out which battery to buy for this computer, check out our complete guide on batteries for dive computers. To learn how to replace the battery yourself step by step without risking damage, read our complete tutorial on how to change your own battery.

If you appreciate SEAC's approach but are looking for different features, you can explore other options from the brand. For more advanced scuba diving needs, the SEAC Action offers increased versatility. If you prefer a console format, the SEAC Screen might catch your attention with its generous display.

To compare this computer with other models, see our diving computer comparison tool.

© 2026 AquaExposure. All rights reserved. Reproduction prohibited without authorization.