How many pieces does the LEGO Sea Serpent (40912-1) have?

The LEGO Sea Serpent set (40912-1) contains 241 pieces. It was released in 2026 as part of the LEGO LEGO Ideas and CUUSOO theme.

How can I find missing parts for LEGO set 40912-1?

On BrickMissing you can check which parts from the LEGO Sea Serpent (40912-1) you already own. Add your LEGO collection and we'll show exactly which of the 241 pieces you're missing and which you already have.

Can I build the LEGO Sea Serpent with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 241 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Sea Serpent from?

The LEGO Sea Serpent (40912-1) belongs to the LEGO LEGO Ideas and CUUSOO theme. You can browse all LEGO Ideas and CUUSOO sets on BrickMissing to find more sets from this theme.

Sea Serpent

40912-1 LEGO Ideas and CUUSOO 2026 241 parts 14.9% catalog rarity Intermediate

The LEGO Ideas Sea Serpent (40912) recreates a classic, rebooting the beloved 1992 Sea Serpent set. This specific design won the prestigious LEGO Ideas ‘A Twist of Nostalgia’ competition, reviving an iconic build for enthusiasts. The ship model features a carefully crafted fabric sail, designed to give an authentic feel to the vessel's movement. Functional moving rudders allow for dynamic positioning, complementing the detailed cargo hold beneath the deck. Two brave knight minifigures stand ready for high-seas adventure, complete with their medieval regalia. With its modular stern, the Sea Serpent offers construction versatility and becomes a distinctive display piece, adding throwback adventure to any shelf or desk setup.

40912-1

3D build progress

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Parts Inventory

🧱 241 parts

Showing the first 12 rows of the parts list (241 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Black	2×	Check price → View
Black	2×	€0,13 View at LEGO → View
Black	5×	€0,08 View at LEGO → View
Black	1×	€0,11 View at LEGO → View
Black	2×	Check price → View
Black	3×	€0,12 View at LEGO → View
Black	1×	€0,10 View at LEGO → View
Black	1×	€0,15 View at LEGO → View
Black	1×	€0,07 View at LEGO → View
Black	1×	€0,10 View at LEGO → View
Black	2×	€0,05 View at LEGO → View
Black	2×	€0,15 View at LEGO → View

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Catalog rarity

How common are the parts in Sea Serpent?

14.9%High rarity

more commonless common

14 of 94 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

4.5%

All sets

6.7%

Least common in our catalog

Helmet Castle · Silver Metallic · only this set in our catalogWedge Plate 3 x 2 Right · Dark Blue-Violet · 2 sets in our catalogSTREAMER · Chrome Pink · 2 sets in our catalog

How we calculate this →