Crystal Crawler (1728-1) is a Aquanauts LEGO set released in 1996 with 97 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Aquanauts sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 1 minifigure and 36 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
1996 (30 years ago — may be retired)
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Catalog scale
97 parts listed · 36 inventory lines tracked
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Minifigures
1 in this set's inventory — verify completeness when buying used
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Build manual
No digital manual in our catalog — check the box tab or LEGO.com
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Gray era
Pre-2004 set — may use old light/dark gray instead of bluish gray
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Shipping weight (est.)
~180 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Minifigures in Crystal Crawler
Parts in this set
36 parts · updating…
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Arm Grab Jaw4221 · ×4 · Black -
Arm Grab Jaw Holder, 3 Fingers4220 · ×2 · Yellow -
Arm Holder Brick 1 x 2 with 2 Horizontal Fingers30014 · ×2 · Black -
![Arm Piece 90° Turn [2 / 3 Fingers]](https://cdn.rebrickable.com/media/parts/ldraw/57/412.png)
Arm Piece 90° Turn [2 / 3 Fingers]412 · ×4 · Trans-Neon Orange -
Arm Piece Straight with 2 and 3 Fingers3612 · ×2 · Black -
Arm Piece Straight with 2 and 3 Fingers3612 · ×6 · Yellow -
Baseplate Sea Floor Play Stage4101599 · ×1 · Blue -
Bracket 8 x 2 x 1 1/34732 · ×2 · Black -
Brick 1 x 33622 · ×2 · Yellow -
Brick 1 x 43010 · ×2 · Yellow -
Brick Sloped 33° 3 x 23298 · ×4 · Black -
Brick Special 1 x 2 x 2 1/3 with Spring Unit2605c01 · ×2 · Black -
Brick Special Octagonal 2 x 2 x 3 1/3 Corner6043 · ×4 · Yellow -
Hinge Brick 1 x 2 Base3937 · ×1 · Black -
![Minifig Footwear Flipper [Thin]](https://cdn.rebrickable.com/media/parts/ldraw/1/59275a.png)
Minifig Footwear Flipper [Thin]59275 · ×2 · Blue -
Plant, Bush 2 x 2 x 46064 · ×1 · Green -
Plate 1 x 104477 · ×2 · Yellow -
Plate 1 x 63666 · ×1 · Yellow -
Plate 1 x 83460 · ×1 · Yellow -
Plate 2 x 23022 · ×4 · Yellow -
Plate 2 x 2 Corner2420 · ×4 · Yellow -
![Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm]](https://cdn.rebrickable.com/media/parts/elements/4597267.jpg)
Plate Special 1 x 2 with Bar Up [Horizontal Arm 6mm]4623 · ×2 · Black -
Propeller 3 Blade 3 Diameter with Axle Cross6041 · ×4 · Trans-Neon Orange -
Technic Axle 103737 · ×2 · Black -
Technic Axle Pin without Friction Ridges Lengthwise3749 · ×4 · Light Gray -
![Technic Brick 1 x 2 [1 Pin Hole]](https://cdn.rebrickable.com/media/parts/elements/370024.jpg)
Technic Brick 1 x 2 [1 Pin Hole]3700 · ×10 · Yellow -
Technic Pin without Friction Ridges Lengthwise3673 · ×2 · Light Gray -
Tile 1 x 2 with Underwater Navigation Print3069bpr0093 · ×1 · Yellow -
Tile Round 2 x 2 with Black Background, Yellow Submarine Print4150pr0029 · ×1 · Yellow -
Tile Special 1 x 1 with Clip and Straight Tips2555 · ×2 · Black -
Tile Special 1 x 2 Grille with Bottom Groove2412b · ×2 · Black -
Tile Special 1 x 2 Grille with Bottom Groove2412b · ×2 · Yellow -
Weapon Dagger / Knife37 · ×2 · Chrome Silver -
![Weapon Harpoon [4 Grooves on Shaft]](https://cdn.rebrickable.com/media/parts/ldraw/383/57467.png)
Weapon Harpoon [4 Grooves on Shaft]57467 · ×2 · Chrome Silver -
Wheel Hard Plastic Medium (35mm D. x 31mm)2593 · ×2 · Yellow -
Windscreen 6 x 6 Octagonal Canopy with Axle hole2418b · ×1 · Trans-Dark Blue