Signum CudavsSeiko Prospex Sea

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Signum Cuda at true scale

Cuda

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

42.5mm

43.5mm

Lug-to-Lug

48mm

lowest

51mm

Thickness

13.6mm

13.3mm

lowest

Water Resistance

200m

200m

Power Reserve

n/a

70h

MSRP

$499

lowest

$1,500

Movement

Miyota 9015

Seiko 6R35

Case

4 specs
Diameter
42.5mm
43.5mm
Thickness
13.6mm
13.3mm
Lug-to-Lug
48mm
51mm
Material
Bronze
Titanium

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
SuperLuminova
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9015
Seiko 6R35
Power Reserve
n/a
70h
Jewels
0
24

Pricing

1 specs
MSRP
$499
$1,500
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Reviews

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

Signum Cuda

Owners widely praise the Signum Cuda's distinctive dial options, particularly the Lapis Lazuli and thermally blued meteorite, noting how they play with light. The lume on the bezel and markers is also frequently highlighted as fantastic. However, multiple owners report that the lume on the hands significantly underperforms compared to the rest of the watch, rendering them unreadable in low light. One owner experienced condensation inside the watch despite the crown being screwed in, leading to concerns about build quality, while another owner stated their Cuda has been fine in water. The bezel action was initially stiff for one owner but improved after lubrication. The Signum Cuda is powered by a Miyota 9015 automatic movement and features 200m water resistance with a 42.5mm case. On balance, owners rate the Signum Cuda highly for its unique dial aesthetics and strong bezel/marker lume, despite consistent criticism regarding the hand lume performance.

From video reviewers

The fully lumed dial is a standout strength. The bracelet's perceived quality was not consistently addressed.

Seiko Prospex Sea

Owners praise the Seiko Prospex Sea for its value and classic design, with reviewers highlighting its impressive case finishing and excellent LumiBrite lume. One owner found the watch to be a great first proper timepiece, while another noted it felt uncomfortably large, thick, and heavy on a 6.5-inch wrist. The hard-coated steel case offers scratch resistance. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its value and finishing.