‹ Teenage Mutant Ninja Turtles
Set 79121
Turtle Sub Undersea Chase
Retired Nov 2015Retail price$59.99What LEGO charged
Worth now$141.30Based on 3 recent sealed sales
Asking now$14.98Typical price on 4 eBay listings
vs retail+136%Worth more than it cost
Not enough data
Fewer than 5 listings behind this value — too thin to call.
How much is LEGO 79121 Turtle Sub Undersea Chase worth?
LEGO 79121 Turtle Sub Undersea Chase is worth about $141.30 sealed right now, based on 3 recent sealed sales. That's 136% above its $59.99 retail price. It came out in 2014 with 684 pieces and 5 minifigures. It was retired in Nov 2015. We last checked it 3 days ago.
Price history
Value history
Oct 22$154 listings
- Lowest
- $15
- Highest
- $15
- Change
- 0%
- Asking vs retail
- -75%
2 observations · median asking · rechecked 8× daily · early days — a line drawn through 2 readings shows what we measured, not a trend
Should you buy it?
Only 4 listings behind this. I wouldn’t bet money on the number yet.
If you bought it to resell
Sells sealed for$141
Marketplace fees · 15.25%−$22
Payment processing · 2.9% + $0.30−$5
Shipping · est. from 684 pieces−$13
Reaches you$102
Pay no more than$78
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sealed
$141
3 sold in six months · $140–$144Used
$90
2 sold in six monthsCurrent listings sit 89% below recent sale prices — unusual, and worth a look.
Completed BrickLink transactions over the last six months. Real sales, not asking prices.
Worth more in pieces?
Parted out$164vsSealed$141
Parting it out is worth about 16% more than selling it sealed — that gap is why this set gets broken.
- Minifigures
- $87
- Loose parts
- 702 pieces
Minifigure prices are real completed BrickLink sales. The parts figure is an estimate — the set’s own inventory at the catalogue average, not each piece priced individually. Treat it as a guide, and remember parting out is hours of work and many small sales.
Set details
- Set number
- 79121
- Theme
- Teenage Mutant Ninja Turtles
- Released
- 2014
- Status
- Retired Nov 2015
- Pieces
- 684
- Minifigures
- 5
- Retail price
- $59.99
- Value per piece
- $0.022
- Price confidence
- low · 4 listings
- Last checked
- 3 days ago
Where these numbers come from
eBay4 live listingsThe asking price here — the median of what sellers want right now, $15. Last checked Oct 22.See the listings →BrickLink3 completed salesWhat it actually sold for — $141 across six months of real transactions. Last checked Oct 20.Open the price guide →Catalogue684 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $60.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
More Teenage Mutant Ninja Turtles sets from around 2014
See all →
▲ 269% vs retailRetired79120 · 2014T-Rawket Sky StrikeTeenage Mutant Ninja Turtles · 286 pcs$1295 listings · retail $35Proven performer
▼ 54% vs retailRetired79122 · 2014Shredder's Lair RescueTeenage Mutant Ninja Turtles · 478 pcs$233 listings · retail $50Not enough data
▲ 300% vs retailRetired79119 · 2014Mutation Chamber UnleashedTeenage Mutant Ninja Turtles · 195 pcs$10015 listings · retail $25Proven performer
▲ 400% vs retailRetired79118 · 2014Karai Bike EscapeTeenage Mutant Ninja Turtles · 88 pcs$6512 listings · retail $13Proven performer