LEGO Sea Serpent 6057-1
LEGO Sea Serpent (6057-1) is worth about $321 on the secondary market today, against a $38 retail price. It has 126 pieces, belongs to the Castle theme and was released in 1992. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
- Set number
- 6057-1
- Theme
- Castle
- Subtheme
- Black Knights
- Year
- 1992
- Pieces
- 126
- Minifigures
- 5
- RRP
- $38
- Market value
- $321
- Used value
- $70
- Released
- 1992
- Retirement
- Retired
Minifigures in LEGO Sea Serpent
- LEGO Black Falcon - Light Gray Legs with Black Hips, Black Neck-Protector
- LEGO Black Falcon - Light Gray Legs with Black Hips, Dark Gray Chin-Guard, Quiver
- LEGO Breastplate - Black, Black Legs with Red Hips, Black Neck-Protector, Red Plastic Cape
- LEGO Scale Mail - Red with Black Arms, Light Gray Legs with Black Hips, Dark Gray Neck-Protector
- LEGO Scale Mail - Red with Blue Arms, Black Legs with Red Hips, Dark Gray Neck-Protector
Sea Serpent value by year
From $124 in 2011 to $308 in 2026 so far: +149%. Its highest year was 2025, at $345.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $308 | −10.6% |
| 2025 | $345 | +1.4% |
| 2024 | $340 | +7.8% |
| 2023 | $315 | +43.6% |
| 2022 | $220 | −26.1% |
| 2021 | $297 | +70.4% |
| 2020 | $174 | −9.3% |
| 2019 | $192 | +8.7% |
| 2018 | $177 | +11.5% |
| 2017 | $159 | +3.0% |
| 2016 | $154 | +4.1% |
| 2015 | $148 | +4.3% |
| 2014 | $142 | +4.5% |
| 2013 | $136 | +4.7% |
| 2012 | $130 | +5.0% |
| 2011 | $124 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 4 priced minifigures are worth about $38 together, roughly 12% of the set's value — about typical for Castle sets (typically 23%).
Frequently asked questions
How much is LEGO Sea Serpent (6057-1) worth?
LEGO Sea Serpent is worth approximately $321 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Sea Serpent retired?
Yes — Sea Serpent (6057-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Sea Serpent gone up in value?
Yes. Sea Serpent launched at $38 and now trades around $321, an increase of 744.5%. See the price history chart for how it got there.
What is the price per piece for Sea Serpent?
At its $38 retail price across 126 pieces, Sea Serpent works out to about $0.302 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Sea Serpent a good investment?
Sea Serpent currently trades 744.5% above its $38 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Sea Serpent so expensive?
Sea Serpent was released in 1992 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.