Dive into Adventure!
The Aquatic Mech is here!

Relive the Alpha Team's Mission Deep Sea with this classic 2002 set. Featuring 166 pieces and a unique minifigure, it's a must-have for LEGO collectors!

🏛 Mission Deep Sea
Set #4789

Alpha Team Aquatic Mech

The Alpha Team Aquatic Mech is a charming and nostalgic deep-sea exploration vehicle.

🏆 Best For: Great for kids and LEGO fans who enjoy classic themes ⏱ 1.5 hr build 🧩 166 pcs
★★★☆☆ 3.8

Fans appreciate the set's classic design and nostalgic appeal, but some find the build too simple and the articulation limited compared to modern LEGO mechs.

📝 Our Take

The Alpha Team Aquatic Mech is a charming and nostalgic deep-sea exploration vehicle. Released in 2002 as part of the Mission Deep Sea theme, it captures the adventurous spirit of underwater discovery with its bright yellow color scheme and functional design.

This set is perfect for LEGO enthusiasts who enjoy classic themes and simpler builds. With a manageable piece count and straightforward instructions, it offers a satisfying building experience that's great for younger builders or those looking for a quick and fun project.

Skip this if you're seeking highly complex builds or modern, detailed aesthetics. Consider newer underwater-themed sets from themes like City or Creator for more intricate designs and advanced building techniques.

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How does this set compare to other underwater-themed LEGO sets from the early 2000s? What are some creative ways to display the Alpha Team Aquatic Mech? Is this set a good introduction to the Mission Deep Sea theme for new collectors? How does the value of this set compare to other sets of similar piece count and age?

🧱 Building Experience

🧩
166
Pieces
1.5h
Build Time
📊
Beginner
Difficulty
Build Highlights:
  • Simple and straightforward build
  • Uses Technic elements for joint articulation
  • Bright yellow color scheme is visually appealing
  • Features a rotating claw and poseable limbs

📈 Investment Analysis

→ Price stable
C+
Investment Grade
⏳ Active
The Alpha Team Aquatic Mech, while not a flagship set, holds some investment potential due to its age, relatively low piece count, and the nostalgia factor associated with the Mission Deep Sea theme. Its value will likely increase slowly over time, driven by collectors seeking to complete their vintage LEGO collections. However, its smaller size and lack of exclusive elements limit its potential for significant appreciation. Keeping the set in mint condition with its original box is crucial to maximize its investment value.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

Compare Similar Sets

Compared to modern underwater sets, the Alpha Team Aquatic Mech offers a simpler, more classic building experience. While it lacks the intricate details of newer sets, its charm lies in its retro design and nostalgic appeal. Collectors seeking a more complex build might prefer sets from the LEGO City Deep Sea Explorers theme, but those seeking a vintage LEGO experience will appreciate this set.

1 Minifigures Included

The set includes a Dash minifigure with a helmet and visor, a standard design for the Alpha Team theme.

📦 Full Parts Inventory - 74 unique parts • 153 total pieces

Rubber Band 15mm [Square Cross Section] Rubber Band 15mm ...
Part #: 23229 Yellow
Brick 2 x 2 Corner Brick 2 x 2 Corner
Part #: 2357 Yellow
Tile Special 1 x 2 Grille with Bottom Groove Tile Special 1 x ...
Part #: 2412b Black
Wedge Plate 3 x 6 Cut Corners Wedge Plate 3 x 6...
Part #: 2419 Dark Gray
Plate 2 x 2 Corner Plate 2 x 2 Corner
Part #: 2420 Dark Gray
Headwear Accessory Visor For Standard Helmet Headwear Accessor...
Part #: 2447 Trans-Dark Blue
Tile Special 2 x 2 with Top Pin Tile Special 2 x ...
Part #: 2460 Dark Gray
Plate Special 2 x 2 with Pin on Bottom Plate Special 2 x...
Part #: 2476a Yellow
Animal Body Part, Shark Body, without Bottom Tube Animal Body Part,...
Part #: 2547 Black
Technic Pin with Friction Ridges Lengthwise and Center Slots Technic Pin with ...
Part #: 2780 Black
Hinge Train Gate 2 x 4 Hinge Train Gate ...
Part #: 2873 Yellow
Lever Small Base with Black Lever Lever Small Base ...
Part #: 298c02 Yellow
Brick 2 x 4 Brick 2 x 4
Part #: 3001 Black
Brick 2 x 2 Brick 2 x 2
Part #: 3003 Dark Gray
Brick 1 x 2 Brick 1 x 2
Part #: 3004 Dark Gray
Animal Body Part, Shark / Sawfish Head Animal Body Part,...
Part #: 30085 Black
Brick 1 x 6 Brick 1 x 6
Part #: 3009 Dark Gray
Plant, Sea Grass Plant, Sea Grass
Part #: 30093 Green
Equipment Binoculars Equipment Binoculars
Part #: 30162 Dark Gray
Equipment Stretcher Holder Equipment Stretch...
Part #: 30191 Yellow
Plate 2 x 4 Plate 2 x 4
Part #: 3020 Yellow
Plate 2 x 4 Plate 2 x 4
Part #: 3020 Dark Gray
Plate 2 x 3 Plate 2 x 3
Part #: 3021 Black
Plate 2 x 2 Plate 2 x 2
Part #: 3022 Dark Gray
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Yellow
Plate 1 x 2 Plate 1 x 2
Part #: 3023 Light Gray
Brick Special 1 x 2 with Handle Brick Special 1 x...
Part #: 30236 Light Gray
Brick Special 1 x 2 with Vertical Clip [Thick U Clip] Brick Special 1 x...
Part #: 30237a Black
Plate 2 x 8 Plate 2 x 8
Part #: 3034 Yellow
Slope 45° 2 x 2 Slope 45° 2 x 2
Part #: 3039 Dark Gray
Hinge 1 x 2 Locking with 2 Fingers and Towball Socket, 9 Teeth Hinge 1 x 2 Locki...
Part #: 30396 Yellow
Arm Grabber Angled Arm Grabber Angled
Part #: 30542 Black
Slope Curved 2 x 2 with Lip, No Studs with Mission Deep Sea 'TEE VEE' Print Slope Curved 2 x ...
Part #: 30602pr0017 Yellow
Hair Flat Top, Tall Hair Flat Top, Tall
Part #: 30608 Brown
Brick Round 1 x 1 Open Stud Brick Round 1 x 1...
Part #: 3062b Yellow
Technic Axle and Pin Connector Angled #1 Technic Axle and ...
Part #: 32013 Yellow
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Technic Pin Long ...
Part #: 32054 Black
Technic Axle 2 Notched Technic Axle 2 No...
Part #: 32062 Red
Technic Beam 1 x 7 Thick Technic Beam 1 x ...
Part #: 32524 Black
Brick Arch 1 x 4 Brick Arch 1 x 4
Part #: 3659 Light Gray
Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] Slope Inverted 45...
Part #: 3660 Yellow
Technic Pin without Friction Ridges Lengthwise Technic Pin witho...
Part #: 3673 Light Gray
Slope 65° 2 x 2 x 2 Smooth without Bottom Tube Slope 65° 2 x 2 x...
Part #: 3678a Black
Technic Brick 1 x 4 [3 Pin Holes] Technic Brick 1 x...
Part #: 3701 Light Gray
Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Plate Special 1 x...
Part #: 3794a Black
Plate Special 1 x 2 with Handles [Flat Ends / Low Attachment] Plate Special 1 x...
Part #: 3839b Black
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Plate Round 2 x 2...
Part #: 4032a Green
Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Plate Special 1 x...
Part #: 4081b Dark Gray
Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Plate Special 1 x...
Part #: 4085c Light Gray
Brick Curved 1 x 4 with Sloped Ends and Two Top Studs Brick Curved 1 x ...
Part #: 40996 Trans-Neon Green
Tile Round 2 x 2 with Fine Mesh Grill Print Tile Round 2 x 2 ...
Part #: 4150pr0022 Light Gray
Equipment Support Foot Platform with Black Danger Stripes and Hose Print Equipment Support...
Part #: 41525pr0001 Yellow
Propeller 8 Blade 5 Diameter Propeller 8 Blade...
Part #: 41530 Trans-Neon Green
Technic Cylinder 4 x 4 with Pin Holes and Centre Bar, Closed Sides on Bar Technic Cylinder ...
Part #: 41531 Yellow
Hinge Cylinder 1 x 3 Locking with 1 Finger and Technic Friction Pin with Round Hole Hinge Cylinder 1 ...
Part #: 41532 Black
Brick Special 2 x 2 x 2 with Rotation Joint Socket and Rear Pin Hole Brick Special 2 x...
Part #: 41533 Black
Plate Special 1 x 2 with Ladder Plate Special 1 x...
Part #: 4175 Black
Rubber Band / Belt Holder 2 x 4 x 2 1/3 Rubber Band / Bel...
Part #: 41752 Dark Gray
Plate Special 2 x 2 with Grills Plate Special 2 x...
Part #: 41862 Yellow
Windscreen 6 x 4 x 2 Wedge Curved Windscreen 6 x 4 ...
Part #: 41883 Trans-Brown
Brick Curved 6 x 1 with Hydraulic Hose and Black Chevrons Print Brick Curved 6 x ...
Part #: 42022pr0004 Yellow
Hinge Vehicle Roof Holder 1 x 4 Hinge Vehicle Roo...
Part #: 4315 Black
Box 2 x 2 x 2 [Hollow Studs] Box 2 x 2 x 2 [Ho...
Part #: 4345b Yellow
Box 2 x 2 x 2 Door with Slot Box 2 x 2 x 2 Doo...
Part #: 4346 Trans-Brown
Technic Axle 3 Technic Axle 3
Part #: 4519 Black
Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm] Plate Special 1 x...
Part #: 4623 Yellow
Bar 1 x 3 [Clip / Anti-Stud] Bar 1 x 3 [Clip /...
Part #: 4735 Black
Wedge Sloped Inverted 6 x 4 with 2 Stud Connections Wedge Sloped Inve...
Part #: 4856a Yellow
Wedge Plate 3 x 4 without Stud Notches Wedge Plate 3 x 4...
Part #: 4859 Dark Gray
Minifig Footwear Flipper [Thin] Minifig Footwear ...
Part #: 59275 Black
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Plate Special 1 x...
Part #: 6019 Black
Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Plate Special 1 x...
Part #: 6019 Yellow
Propeller 3 Blade 3 Diameter with Axle Cross Propeller 3 Blade...
Part #: 6041 Black
Bracket 5 x 2 x 2 1/3 with Holes, Smooth Bottom Bracket 5 x 2 x 2...
Part #: 6087 Black
Plate Round 1 x 1 with Solid Stud Plate Round 1 x 1...
Part #: 6141 Trans-Neon Green
Bar 1 x 4 x 2 Bar 1 x 4 x 2
Part #: 6187 Yellow
Technic Rotation Joint Ball with Arm - Pin and Hole Ends Technic Rotation ...
Part #: upn0268c01 Yellow
The set features a vibrant selection of yellow and gray pieces, typical of the Mission Deep Sea theme. The Technic rotation joints add functionality and poseability to the mech.

💎 Notable Parts

Yellow Plate 1 x 2 (8x) $0.40
Yellow Brick Round 1 x 1 Open Stud (4x) $0.60
Black Tile Special 1 x 2 Grille with Bottom Groove (4x) $1.00
Yellow Technic Rotation Joint Ball with Arm - Pin and Hole Ends (4x) $1.20
Yellow Plate 2 x 4 (4x) $0.40
Est. BrickLink Part Value
$3.60

💡 MOC Potential

🤖 Create a larger, more imposing deep-sea mech with additional armor.
🚢 Design a small submarine or underwater scooter.
🌳 Build a coral reef diorama with hidden treasures.

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Charts Inventory Statistics

74
Unique Parts
153
Total Pieces
1
Minifigures
Inventory Version: 1