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6057 LEGO Black Knights Sea Serpent thumbnail image

6057 LEGO Black Knights Sea Serpent
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6057 LEGO Black Knights Sea Serpent
  • Sea Serpent thumbnail
  • Sea Serpent thumbnail

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Sea Serpent since January 2018. Very high accuracy
LEGO 6057 Sea Serpent was a 126 piece Castle set with 5 minifigs released in 1992. It was also called "Black Knight's Ship". The current value for a new and sealed Sea Serpent is estimated at $353 with an average yearly gain of about 6% which is lower than other Black Knights sets. The current used prices for Sea Serpent can be found in the range of $62 and $84 depending on the set's condition, with an average price of $70 if it is in good overall condition.
All regions

For Sale (New/Sealed)
(DE) NEW, but box is open and with some marks. See original pictures!
$324.91
-7.9%
(US) #6057 Sea Serpent 100% Complete 1992 Lego Castle Black Knights NEW MIB
BrickEconomy Choice
$325.00
-7.9%
(US) Amazon listing for Sea Serpent
~$370.61
+5.0%
(US) System 6057 NEW Sea Serpent Set 1992 Complete
$400.00
+13.3%
(US) This set is Brand New and Sealed. We are the original owner and bought it new off the...
$425.00
+20.4%

Sets in Castle / Black Knights

6085 Black Monarch's Castle

Theme / Subtheme Castle / Black Knights
Year 1988
Pieces / Minifigs 702 / 12
Availability Retired
6085 LEGO Black Knights Black Monarch's Castle
Retail $67.95
Value $2,603.71
Growth  3731.8%
Annual growth 6.5%

6086 Black Knight's Castle

Theme / Subtheme Castle / Black Knights
Year 1992
Pieces / Minifigs 588 / 12
Availability Retired
6086 LEGO Black Knight's Castle
Retail $84.99
Value $4,850.45
Growth  5607.1%
Annual growth 11.7%

6059 Knight's Stronghold

Theme / Subtheme Castle / Black Knights
Year 1990
Pieces / Minifigs 224 / 5
Availability Retired
6059 LEGO Black Knights Knight's Stronghold
Retail $21.99
Value $674.66
Growth  2968.0%
Annual growth 6.0%

1547 Black Knights Boat

Theme / Subtheme Castle / Black Knights
Year 1993
Pieces / Minifigs 58 / 2
Availability Retired
1547 LEGO Black Knights Boat
Retail $4.25
Value $195.03
Growth  4488.9%
Annual growth 11.0%

6018 Battle Dragon

Theme / Subtheme Castle / Black Knights
Year 1990
Pieces / Minifigs 56 / 2
Availability Retired
6018 LEGO Black Knights Battle Dragon
Retail $4.49
Value $134.60
Growth  2897.8%
Annual growth 10.2%

1888 Black Knights Guardshack

Theme / Subtheme Castle / Black Knights
Year 1992
Pieces / Minifigs 49 / 2
Availability Retired
1888 LEGO Black Knights Guardshack
Retail $3.49
Value $140.33
Growth  3920.9%
Annual growth 12.2%

1491 Dual Defender

Theme / Subtheme Castle / Black Knights
Year 1992
Pieces / Minifigs 48 / 2
Availability Retired
1491 LEGO Black Knights Dual Defender
Retail $3.49
Value $164.93
Growth  4625.8%
Annual growth 10.2%

6034 Black Monarch's Ghost

Theme / Subtheme Castle / Black Knights
Year 1990
Pieces / Minifigs 46 / 2
Availability Retired
6034 LEGO Black Knights Black Monarch's Ghost
Retail $7.25
Value $284.97
Growth  3830.6%
Annual growth 9.8%

1971 Battering Ram

Theme / Subtheme Castle / Black Knights
Year 1993
Pieces / Minifigs 36 / 1
Availability Retired
1971 LEGO Black Knights Battering Ram
promotional
Value $163.25
Annual growth 5.8%

6009 Black Knight

Theme / Subtheme Castle / Black Knights
Year 1992
Pieces / Minifigs 24 / 1
Availability Retired
6009 LEGO Castle Black Knight
Retail $3.25
Value $150.00
Growth  4515.4%
Annual growth 10.2%

1624 King's Archer

Theme / Subtheme Castle / Black Knights
Year 1993
Pieces / Minifigs 22 / 1
Availability Retired
1624 LEGO Black Knights King's Archer
Retail $2.49
Value $60.74
Growth  2339.4%
Annual growth 10.9%

1917 King's Catapult

Theme / Subtheme Castle / Black Knights
Year 1993
Pieces / Minifigs 22 / 1
Availability Retired
1917 LEGO Black Knights King's Catapult
Retail $1.99
Value $96.67
Growth  4757.8%
Annual growth 12.8%

2890 Stone Bomber

Theme / Subtheme Castle / Black Knights
Year 1998
Pieces / Minifigs 22 / 1
Availability Retired
2890 LEGO Black Knights Stone Bomber
promotional
Value $63.13
Annual growth 10.5%
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My Collection

Sea Serpent Reviews

28 reviews
4.8
Collectors
Investors
Is this LEGO set a good investment?
“As an investment, Sea Serpent has performed fairly well over the past years in the Black Knights theme with an overall growth since retirement of around 2334%.”
Review brought to you by BrickEconomy Bot
Steve's LEGO Blog
“The Falcon’s in this set are merely antagonists and the only thing to really note here is the unusual grey helm on the archer and the grey trousers on both of them... As these were the last Falcon’s to be released (ever) they could be the final warriors fleeing the land.”
Full review at legosteveblog.blogspot.com
Playing with Bricks
“This set comes highly recommended. Five figures for the price (at least back when you could buy the set in stores) was a steal. For adults, the set does offer a few unique pieces (and a great chance to army build) but there isn't a lot else you can build with the set... More itself.”
Full review at playingwithbricks.blogspot.com

About Castle Black Knights

The Black Knights were a faction of the Castle theme introduced in 1998. A total of 13 sets were released containing 3 major castles. Most of the castles and fortification where colored black and their symbol was a wyvern dragon. While The Black Knights subtheme was discontinued after 1994 the crest was still used in later sets.

Black Knights consists of 14 sets that ran from 1988 to 1998. As of today, 6086 Black Knight's Castle is the most valuable Black Knights set with an estimated new/factory sealed value of $4,850.
Summary
Castle Black Knights Sea Serpent set 6057 was released in March 1992, retailing for $15, but has since been retired. New, unopened Sea Serpent sets are valued at $353, while used sets can be found for $70.
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