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AT Aquatic Mech

AT Aquatic Mech

4789-1·LEGO·2002·1 minifig·77 parts

Used Avg
$95.00
New Avg
$95.00
Showing used price
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About AT Aquatic Mech

AT Aquatic Mech (4789-1) is a LEGO LEGO set released in 2002, currently averaging $95.00 used on BrickLink. It comes with 1 minifigure worth a combined $2.20. The set has retired from retail, so secondary market is the only option. The full parts inventory runs 77 pieces.

Part-out value

The minifigures make up only 2% of this set's value ($2.20 out of $95.00). The bulk of the value is in the parts or the set being complete. Sell it as a complete set if possible.

Seller notes

  • This is a vintage set (2002). Condition of the box and instructions significantly affects value. A complete set with original box and instructions can sell for well above the average.

Minifigures in AT Aquatic Mech (1)

Dash - Mission Deep Sea, Trans-Dark Blue Visor
Dash - Mission Deep Sea, Trans-Dark Blue Visor
alp034$2.20

Parts (77)

Brick 2 x 2 Corner
Brick 2 x 2 Corner
×2
Tile, Modified 1 x 2 Grille with Bottom Groove
Tile, Modified 1 x 2 Grille with Bottom Groove
×4
Wedge, Plate 3 x 6 Cut Corners
Wedge, Plate 3 x 6 Cut Corners
Plate 2 x 2 Corner
Plate 2 x 2 Corner
×2
Minifigure, Visor Standard
Minifigure, Visor Standard
Tile, Modified 2 x 2 with Pin
Tile, Modified 2 x 2 with Pin
×4
Plate, Modified 2 x 2 with Pin on Bottom, Small Holes in Plate and Locking Fingers on Underside
Plate, Modified 2 x 2 with Pin on Bottom, Small Holes in Plate and Locking Fingers on Underside
×2
Shark Body
Shark Body
Minifigure Footgear Flippers, 2 on Sprue
Minifigure Footgear Flippers, 2 on Sprue
Technic, Pin with Short Friction Ridges
Technic, Pin with Short Friction Ridges
×2
Hinge Train Gate 2 x 4
Hinge Train Gate 2 x 4
Brick 2 x 4
Brick 2 x 4
Brick 2 x 2
Brick 2 x 2
×2
Brick 1 x 2
Brick 1 x 2
×4
Brick 1 x 6
Brick 1 x 6
Plant Sea Grass / Seaweed
Plant Sea Grass / Seaweed
Minifigure, Utensil Binoculars Town
Minifigure, Utensil Binoculars Town
Plate 2 x 4
Plate 2 x 4
×4
Plate 2 x 4
Plate 2 x 4
×4
Plate 2 x 3
Plate 2 x 3
×2
Plate 2 x 2
Plate 2 x 2
×3
Plate 1 x 2
Plate 1 x 2
×8
Plate 1 x 2
Plate 1 x 2
×4
Brick, Modified 1 x 2 with Bar Handle on Side
Brick, Modified 1 x 2 with Bar Handle on Side
×3
Brick, Modified 1 x 2 with Split U Clip Thick (Vertical Grip)
Brick, Modified 1 x 2 with Split U Clip Thick (Vertical Grip)
Plate 2 x 8
Plate 2 x 8
Slope 45 2 x 2
Slope 45 2 x 2
Hinge 1 x 2 Locking with 2 Fingers and Tow Ball Socket
Hinge 1 x 2 Locking with 2 Fingers and Tow Ball Socket
Arm Grabber Angled
Arm Grabber Angled
×2
Slope, Curved 2 x 2 Lip with Black 'TEE VEE', Green 'MISSION DEEP SEA', and Silver Buttons Pattern
Slope, Curved 2 x 2 Lip with Black 'TEE VEE', Green 'MISSION DEEP SEA', and Silver Buttons Pattern
Minifigure, Hair Flat Top with Extended Sides
Minifigure, Hair Flat Top with Extended Sides
Brick, Round  1 x 1
Brick, Round 1 x 1
×4
Technic, Axle and Pin Connector Angled #1
Technic, Axle and Pin Connector Angled #1
Technic, Pin 3L with Friction Ridges and Stop Bush
Technic, Pin 3L with Friction Ridges and Stop Bush
Technic, Axle  2L Notched
Technic, Axle 2L Notched
Technic, Liftarm Thick 1 x 7
Technic, Liftarm Thick 1 x 7
×2
Arch 1 x 4
Arch 1 x 4
Slope, Inverted 45 2 x 2 with Flat Bottom Pin
Slope, Inverted 45 2 x 2 with Flat Bottom Pin
×3
Technic, Pin without Friction Ridges
Technic, Pin without Friction Ridges
×2
Slope 65 2 x 2 x 2 without Bottom Tube
Slope 65 2 x 2 x 2 without Bottom Tube
×2
Technic, Brick 1 x 4 with Holes
Technic, Brick 1 x 4 with Holes
×2
Plate, Modified 1 x 2 with 1 Stud without Groove (Jumper)
Plate, Modified 1 x 2 with 1 Stud without Groove (Jumper)
Plate, Modified 1 x 2 with Bar Handles - Flat Ends, Low Attachment
Plate, Modified 1 x 2 with Bar Handles - Flat Ends, Low Attachment
Plate, Round 2 x 2 with Axle Hole
Plate, Round 2 x 2 with Axle Hole
Plate, Round 1 x 1
Plate, Round 1 x 1
×11
Plate, Modified 1 x 1 with Light Attachment - Thick Ring
Plate, Modified 1 x 1 with Light Attachment - Thick Ring
×2
Plate, Modified 1 x 1 with U Clip Thick (Vertical Grip)
Plate, Modified 1 x 1 with U Clip Thick (Vertical Grip)
×4
Slope, Curved 4 x 1 Double with 2 Recessed Studs
Slope, Curved 4 x 1 Double with 2 Recessed Studs
Tile, Round 2 x 2 with Fine Mesh Grille Manhole Cover Pattern
Tile, Round 2 x 2 with Fine Mesh Grille Manhole Cover Pattern
×2
Support Foot Platform with Black Danger Stripes and Silver Hose Pattern on Both Sides (Robot Diver)
Support Foot Platform with Black Danger Stripes and Silver Hose Pattern on Both Sides (Robot Diver)
×2
Propeller 8 Blade 5 Diameter
Propeller 8 Blade 5 Diameter
×2
Cylinder 4 x 4 x 1 2/3 with Pin Holes and Center Bar
Cylinder 4 x 4 x 1 2/3 with Pin Holes and Center Bar
×2
Hinge Cylinder 1 x 3 Locking with 1 Finger and Pin with Round Hole and Friction Ridges on Ends
Hinge Cylinder 1 x 3 Locking with 1 Finger and Pin with Round Hole and Friction Ridges on Ends
Technic, Brick Modified 2 x 2 x 2 with Rotation Joint Socket
Technic, Brick Modified 2 x 2 x 2 with Rotation Joint Socket
×2
Ladder 1 1/2 x 2 x 2
Ladder 1 1/2 x 2 x 2
×2
Rubber Band / Belt Holder 2 x 4 x 2 1/3
Rubber Band / Belt Holder 2 x 4 x 2 1/3
Plate, Modified 2 x 2 with Vents
Plate, Modified 2 x 2 with Vents
×2
Windscreen 6 x 4 x 2 Wedge Curved
Windscreen 6 x 4 x 2 Wedge Curved
Slope, Curved 6 x 1 with 2 Studs with Black Danger Chevrons and Silver Hose Pattern
Slope, Curved 6 x 1 with 2 Studs with Black Danger Chevrons and Silver Hose Pattern
×2
Hinge Plate 1 x 4
Hinge Plate 1 x 4
Container, Box 2 x 2 x 2
Container, Box 2 x 2 x 2
×2
Container, Box 2 x 2 x 2 Door with Slot
Container, Box 2 x 2 x 2 Door with Slot
×2
Technic, Axle  3L
Technic, Axle 3L
Antenna Small Base with Black Lever (4592 / 4593)
Antenna Small Base with Black Lever (4592 / 4593)
×3
Plate, Modified 1 x 2 with Bar Arm Up (Horizontal Arm 6mm)
Plate, Modified 1 x 2 with Bar Arm Up (Horizontal Arm 6mm)
×3
Bar 1 x 3 with Clip and Stud Holder (Robot Arm)
Bar 1 x 3 with Clip and Stud Holder (Robot Arm)
×2
Wedge 6 x 4 Triple Inverted with Connections between 2 Studs
Wedge 6 x 4 Triple Inverted with Connections between 2 Studs
Wedge, Plate 3 x 4 without Stud Notches
Wedge, Plate 3 x 4 without Stud Notches
×2
Plate, Modified 1 x 1 with U Clip (Horizontal Grip)
Plate, Modified 1 x 1 with U Clip (Horizontal Grip)
×2
Plate, Modified 1 x 1 with U Clip (Horizontal Grip)
Plate, Modified 1 x 1 with U Clip (Horizontal Grip)
×4
Propeller 3 Blade 3 Diameter with Axle Hole
Propeller 3 Blade 3 Diameter with Axle Hole
×2
Bracket 5 x 2 x 2 1/3 with 2 Holes
Bracket 5 x 2 x 2 1/3 with 2 Holes
×2
Bar 1 x 4 x 2
Bar 1 x 4 x 2
×2
Rubber Band Extra Small (Square Cross Section)
Rubber Band Extra Small (Square Cross Section)
×4
Minifigure, Utensil Stretcher Holder Flexible
Minifigure, Utensil Stretcher Holder Flexible
×2
Technic Rotation Joint Ball with Arm and Black Pin and Socket Ends
Technic Rotation Joint Ball with Arm and Black Pin and Socket Ends
×4
Shark Head Sawfish with Debossed Eyes
Shark Head Sawfish with Debossed Eyes

Common questions about AT Aquatic Mech

How much is LEGO AT Aquatic Mech (4789-1) worth?

AT Aquatic Mech sells for an average of $95.00 used on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

What minifigures come in LEGO set 4789-1?

This set includes 1 minifigure: Dash - Mission Deep Sea, Trans-Dark Blue Visor ($2.20). The minifigures have a combined BrickLink value of $2.20. Each figure is linked above with individual pricing if you're looking to buy or sell specific characters.

Is it worth parting out LEGO AT Aquatic Mech?

The minifigures make up about 2% of the set value ($2.20 out of $95.00). Most of the value is in the complete set package, so selling it whole is likely the better move unless you have buyers lined up for specific figures.

Is LEGO AT Aquatic Mech (4789-1) retired?

Yes, AT Aquatic Mech was released in 2002 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms.

How do I check if my AT Aquatic Mech set is complete?

Use the parts list on this page to check every piece and all 1 minifigure. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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