6175

LEGO set 6175, “Crystal Explorer Sub”, depicts an exploration submarine from the Aquazone theme, specifically the Aquanauts subtheme. Released in 1995, it contains 167 pieces and includes 2 minifigures, Aquanaut 1 and Aquanaut 3.

“Crystal Explorer Sub” belongs to the fictional underwater setting of Aquazone, where exploration vehicles and crews define much of the play context. Within that theme path, it is assigned to Aquanauts, placing it among the exploration-focused models rather than an externally licensed range.

The documented contents are 167 pieces and 2 named minifigures: Aquanaut 1 and Aquanaut 3. The build represents a crewed submersible intended for underwater exploration scenarios. The supplied facts do not confirm particular mechanisms or specialized elements, so the set is best described in broad terms as an Aquanauts expedition vehicle with a dedicated crew.

For display, the model fits well in an Aquazone collection or a broader presentation of classic underwater LEGO themes. For play, it provides a clear vehicle-and-crew setup that can be combined with bases, smaller craft, or other Aquanauts models. In a collection, it helps define the faction’s exploration role and gives context to the named characters included with the set.