Side by side

Ralf Tech WRX ELECTRIC BLACK DIAMONDvsRolex Deepsea Challenge

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Ralf Tech WRX ELECTRIC BLACK DIAMOND

The Ralf Tech WRX earns broad praise for its striking design and accessible price. Owners highlight the domed sapphire crystal, generous lume, and solid build quality that convey more refinement than its $350 price suggests, plus limited-edition exclusivity. The perlage-polished aluminum dial and large luminous hands deliver strong low-light visibility on a robust 47.5mm case. Drawbacks include a small crown that can be fiddly to operate and a large buckle on the leather strap that some find irritating against the wrist. On balance, the WRX is valued for its distinctive dial finishing and confident dive-watch design at a price that punches above its weight.

Rolex Deepsea Challenge

The Rolex Deepsea Challenge is widely recognized as an engineering feat, showcasing Rolex's first all-titanium construction and extreme 11,000m water resistance. Owners and reviewers consistently describe the 50mm Rolex Deepsea Challenge as a massive, gigantic, and barely wearable "monster" of a watch, with some finding its size and proportions impractical and uncomfortable for extended wear. Reviewers note a crude, charred-like brushed finish on the titanium bracelet and dial printing with soft edges and inconsistent spacing, which falls short of the brand's usual high standards. On balance, owners and reviewers view the Rolex Deepsea Challenge as an outstanding technical achievement and a unique collectible piece, rather than a practical daily wearer.

At a glance

16 of 29 specs differ
Diameter
WRX ELECTRIC BLACK DIAMOND47.5mm
Deepsea Challenge50mm
Power Reserve
WRX ELECTRIC BLACK DIAMOND40h
Deepsea Challenge70h
Water Resistance
WRX ELECTRIC BLACK DIAMOND1,000m
Deepsea Challenge1,000m
MSRP
WRX ELECTRIC BLACK DIAMOND$29,900
Deepsea Challenge$29,100

Full specifications

Case

7 specs
Category
Diver
Diameter
47.5mm
50mm
Thickness
5.9mm
9.5mm
Lug Width
26mm
Material
Stainless Steel (PVD black)
RLX Titanium
Finish
Brushed and polished
RLX titanium
Caseback
Solid
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock system case architecture with nitrogen-alloyed steel ring and helium escape valve

Crystal & Dial

4 specs
AR Coating
Inner
Dial Color
Black
Indices
Applied
Index
Lume
None
Chromalight

Movement

4 specs
Caliber
RTE001 Long Range
3230
Type
Electric Micro Hybrid
Automatic
Power Reserve
40h
70h
Jewels
25
31

Pricing

1 specs
MSRP
$29,900
$29,100
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