Side by side

Rolex Deepsea ChallengevsSeiko Prospex LX line

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

Deepsea Challenge
RolexDeepsea Challenge
MSRP $29,100
Prospex LX line
SeikoProspex LX line
MSRP $6,500
What people say

Owners + reviewers, side by side

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

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.

Seiko Prospex LX line

Owners widely report the Seiko Prospex LX line's finishing is a step up from other models, with a case that sits well on the wrist, and some praise the green sunburst dial with blue anti-reflective sapphire crystal as phenomenal. However, owners note the high MSRP limited sales, with some desiring smaller cases and a reduced price, and others experienced quality control issues such as detached second hands and peeling DLC coating, leading to concerns about fragility. On balance, owners feel the Seiko Prospex LX line was discontinued due to pricing that alienated its target market, despite its attractive dial.

At a glance

16 of 29 specs differ
Diameter
Deepsea Challenge50mm
Prospex LX line44.8mm
Power Reserve
Deepsea Challenge70h
Prospex LX line72h
Water Resistance
Deepsea Challenge1,000m
Prospex LX line300m
MSRP
Deepsea Challenge$29,100
Prospex LX line$6,500

Full specifications

Case

8 specs
Diameter
50mm
44.8mm
Thickness
9.5mm
15.7mm
Lug-to-Lug
46mm
50.9mm
Lug Width
22mm
Material
RLX Titanium
Titanium
Finish
RLX titanium
Brushed and polished
Water Resistance
1000m
300m
Caseback
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock system case architecture with nitrogen-alloyed steel ring and helium escape valve
Solid

Crystal & Dial

3 specs
AR Coating
Anti-reflective coating on inner surface
Indices
Index
Applied
Lume
Chromalight
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
3230
5R65
Type
Automatic
Spring Drive
Power Reserve
70h
72h
Jewels
31
30

Pricing

1 specs
MSRP
$29,100
$6,500
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