Daiwa Seaborg 500MJ-AT
A high-end reel for deep-drop anglers who want the automatic stop at depth and fast retrieves, at the price of weight and cost.
Amazon $1,534.39 eBay$1,534.39
23 kg180 m/min1,010 g
3.5/5
A tougher-motor 300J for anglers who fish it hard, with a longer motor warranty than the standard model.
- 16 kgMax drag
- 146 m/minLine speed
- 575 gWeight
- 6:1Gear ratio
Check price at Amazon$1,149.99Search eBay
Price checked November 4, 2026. As an Amazon Associate we earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.
Pros
- 3-year motor warranty with a motor Daiwa rates at four times the base model
- Light at 575 g
Cons
- Slower under load than the 2026 300J
- Only 16 kg of drag
The Daiwa Seaborg G family
Every Daiwa Seaborg G model we rank, smallest first. Ratings compare each against its own drag.
| Model | Max drag | Rating | Price |
|---|---|---|---|
| Daiwa Seaborg G300J (this one) | 16 kg | 3.5/5 | $1,149.99 |
| Daiwa Seaborg G400J | 16 kg | 3.7/5 | $879.77 |
| Daiwa Seaborg G800MJ | 36 kg | 4.0/5 | $1,579.89 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its drag. How we rank explains each one.
Specifications
| Model number | Seaborg G300J |
|---|---|
| Performance | |
| Maximum drag | 16 kg |
| Standard pulling force (JAFS) | 14 kg |
| Line speed, 1 kg load | 146 m/min |
| Gear ratio | 6:1 |
| Line per handle turn | 83 cm |
| Line capacity (PE no. - metres) | PE 3-400 / 4-300 / 5-230 |
| Power | |
| Power supply | DC 12-16.8 V |
| Battery in the box | No |
| Warranty | 12 months |
| Motor warranty | 3 years |
| Build | |
| Weight | 575 g (20.3 oz) |
| Bearings (ball/roller) | 18/1 |
| Handle | Right |
Alternatives in this drag
Daiwa Seaborg 400J
The value pick for fishing 300 to 1,500 ft: a mid-size Seaborg with the capacity for deep drops at a lower price than the G models.
Amazon $706.58 eBay$706.58
16 kg150 m/min585 g
Daiwa Leobritz S500JP
The best value in deep-drop electrics: 16 kg of drag and 500 m of PE 4 for about $430.
Amazon $427.60 eBay$427.60
16 kg135 m/min800 g
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