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Regular price $569.99 USD
Regular price Sale price $569.99 USD
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2023 year model

Display Multi-Language Support: Japanese / English / Traditional Chinese / Korean

Weighing 585g, Sensitivity in Lightness, “LIGHT MONSTER2”

For those who want to enjoy fishing comfortably with the feel of a 300-size reel, yet desire ample line capacity, power, and speed, the SEABORG400J is the embodiment of these desires. It boasts a line capacity of PE4-400m and PE5-300m, addressing the insufficient line capacity of the SEABORG300J. Weighing 585g, it is 240g lighter than the SEABORG500JP, enabling fishing with the feel of a 300-size reel while delivering the performance of a 500-size reel. From Spear Squid to Snapper, Pelagic Fish, Deep Sea, and Vertical Jigging, the SEABORG400J handles it all.

In terms of technology, it features the ergonomic JOG Power Lever for comfortable one-hand operation, MAGMAX motor balancing torque and instant power, smooth ATD drag system, waterproof and durable MAGSEALED ball bearings, and essential Daiwa technologies. It includes a high-visibility dot LCD and a Fall Brake Dial for adjusting descent speed, along with compatibility with Electric Mobile Setting. The SEABORG400J supports a comfortable fishing experience.

Lightweight and Compact

1. Weighing 585g, achieving lightweight design
• SEABORG500JP: 825g (240g reduction)
2. Small and Compact Body
• Low Profile/Narrow Form & Screwless Body

High Power

1. Balancing torque and instant power like a 500-size reel with “MAGMAX Motor”
• JAFS standard winding force of 14kg
2. Smooth and continuous operation with “ATD”
• Maximum drag force of 16kg

Comfortable Operation

• Left handle available in 400 size

1. Allows delicate operation even with wet fingers with “Aluminum JOG Power Lever”
2. Waterproof and durable technology “MagShield Ball Bearings”
3. Motor ON/OFF linked clutch
• Clutch ON ⇒ Electric winding / Clutch OFF ⇒ Motor stop
4. Instantly adjust descent speed with “Fall Brake Dial”
5. High visibility “Dot LCD Counter”
6. Smooth and continuous operation with ATD

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Model Retrieve Gear Ratio Ball Bearing Max Drag
Reel Weight
Line Capacity
Line Capacity
400J Right 5.1 12+1 35.3 20.6 20/330, 22/250 35/550, 40/440, 50/330 -
400JL Left 5.1 12+1 35.3 20.6 20/330, 22/250 35/550, 40/440, 50/330 -

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The MAGMAX motor is a custom motor specifically designed for DAIWA electric reels. At the heart of the motor system is a “special neodymium magnet,” an ideal magnet that generates high torque even at low speeds with minimal load, combining toughness and power. It supports delicate output adjustments such as “slow reeling” and “gentle boat-side stop,” and the responsive brush motor excels in providing instant power.


The structure maximizes the power of the motor by making full use of the limited space within the electric reel. It achieves high power and high speed in a compact space. Additionally, the improved motor cooling effect contributes to further enhancing motor drive efficiency.


By moving the power lever to the center of the body and changing its shape to a jog dial style, you can control the reeling and clutch on/off with just the thumb of the hand holding the rod. This completely frees your other hand from lever operation, allowing you to focus entirely on rod handling. The precise control with just one thumb enables subtle adjustments to the lever and lets you manage the reeling speed exactly as you wish.


With its proprietary technology, DAIWA has become the first in the world to successfully apply Magsealed technology to the ball bearings themselves. The magnetic fluid barrier prevents water and foreign substances from entering the ball bearings, maintaining their original rotational performance while significantly reducing rust, saltwater intrusion, and noise.


The ATD (Automatic Tournament Drag) system operates smoothly in response to fish pulling, providing continuous, smooth performance. By focusing on initial movement and responsiveness, it allows you to concentrate on the fight without worrying about drag settings.

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