LEGO Sentai Fortress set box

Sentai Fortress

The Sentai Fortress (7709-1) is a LEGO Exo-Force set that was released in June 2006 and retired in December 2007 with a shelf life of 1 year and 7 months .

This LEGO set has 1,448 pieces and had a RRP of $99.99 (£69.99 / -€) which equates to a price per piece of 0.07c (0.05p / 0.00€) . Since it retired it has grown in value by 285.6% and now has a value of $385.56 based on average sale price over the last 6 months.

Price over time

New condition


This set contains 8 minifigures with a combined value of $50.70. 1 of the minifigures in this set are exclusive, meaning they don't appear in any other LEGO sets.

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Monthly sales

Value breakdown

The current value of Sentai Fortress is $385.56

The 8 minifigures in this set make up 13% of the total set value.

The Mini Venom Walker minifigure is the most valuable minifigure in this set who contributes 3% of the set value .

Expensive pieces

My collection

Set details

Name: Sentai Fortress

Theme: Exo-Force

Set number: 7709-1

Status: Retired

Retired for: 16 years, 8 months

Pieces: 1,448

Minifigures: 8

Released: June 2006

Retired: December 2007

Shelf life: 1 year, 7 months

US Flag $99.99
GB Flag £69.99
EU Flag -€
US Flag 0.069c
GB Flag 0.048p
EU Flag -

Set value

Confidence: Low

Current value: $385.56

Increase from RRP: 285.6%

Yearly ROI: 17.1%

Where to buy

Bricklink logo Bricklink £162.94 Buy
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Most expensive:
Mini Venom Walker
Least expensive:
Iron Drone (Devastator)
% of set value:

Set colors

The Sentai Fortress has 1448 pieces and is ranked 378 on the list of biggest LEGO sets ever made.

The most common colour in this set is Black

The most common part in this set is Cone 1 x 1 without Top Groove


Faded medal
378th biggest LEGO set ever made
Gold medal
1st biggest LEGO Exo-Force set
Faded medal
366th most valuable LEGO set
Gold medal
1st most valuable LEGO Exo-Force set

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