Technic

Deep-Sea Research Submarine

42201
413 pieces
Retiring End of this year
BUYING ADVICE
🔥Get it now!
23% OFF
At 23% off, this is an excellent deal for this set. Retiring within 3 months, so stock is dwindling and deals can vanish fast. It has been as low as £20.95 (40% off), so the current deal is good but not the best we've seen. Price just dropped from £31.95.

retail price

£34.99

 

best price

£26.99

-£8.00

Lowest ever: £20.95 at Amazon (7 Dec 2025)

This set is 23% off - watch it to get notified of even bigger drops

About LEGO Deep-Sea Research Submarine

Built from 413 pieces, this submarine model measures 25 cm long, 15 cm high and 15 cm wide. The set is designed for builders aged 9 and up and features realistic mechanical elements that demonstrate how submarines operate.

The model includes rotating propellers and an extending grabbing arm that can pick up the included barrel accessory. The transparent cockpit opens to reveal detailed interior controls and seating. These functional features help demonstrate basic submarine mechanics and underwater operations.

Key Features

The submarine's grabbing arm extends and retracts to collect objects, while the propellers rotate to show propulsion mechanics. The opening cockpit provides access to detailed interior elements including pilot controls and seating arrangements.

This Technic set introduces basic engineering concepts through realistic movement and mechanical functions. The building experience focuses on understanding how submarine systems work rather than purely decorative construction.

Where to Buy LEGO Deep-Sea Research Submarine for the Best Price

We've been tracking prices for this set since November 2025. The recommended retail price is £34.99. It's currently available from 9 retailers, with Amazon offering the best price at £26.99, which is 23% below RRP. The lowest price we've ever recorded was £20.95 at Amazon in December 2025, 40% off RRP. Over its tracked history, prices have ranged from £20.95 to £39.99. This set is expected to retire end of this year, so prices may increase as availability decreases.

Set Details

Set Number
42201
Pieces
413
Theme
Technic
RRP
£34.99
Best Price
£26.99
Price per Piece
0.07p
Browse all Technic sets →

Price History

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Price History

Magic Madhouse
05/11/2026
£28.93
John Lewis
05/11/2026
£26.99
Argos
04/11/2026
£27.00
Zatu
23/10/2026
£27.95
LEGO
21/10/2026
£34.99
Very
16/10/2026
£27.99
Amazon
13/10/2026
£26.99
ASDA
08/10/2026
£28.00
Chaos Cards
06/08/2026
£31.95