Ralf Tech WRX ELECTRIC BLACKvsSinn U18

The Ralf Tech WRX ELECTRIC BLACK is noted for its striking domed sapphire crystal and good lume, with owners appreciating its quality feel and exclusivity as a limited edition. The perlage-polished aluminum dial is a standout feature rarely seen on affordable dive watches, contributing to its functional, tool-like design with large luminous hands and markers. However, the watch is described as huge and heavy, and the small crown can be difficult to manipulate, while the large buckle on the leather strap may irritate some wearers. A reviewer also expressed skepticism about the brand name and noted the watch site is only in French. Overall, owners and reviewers find the Ralf Tech WRX ELECTRIC BLACK to be a unique tool watch with a distinctive dial, despite its substantial size and some ergonomic considerations.

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.