Orient RA-AC0K Diver WatchvsSignum Cuda

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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.

Orient RA-AC0K Diver Watch at true scale

RA-AC0K Diver Watch

Signum Cuda at true scale

Cuda

Diameter

43.4mm

42.5mm

Lug-to-Lug

51mm

48mm

lowest

Thickness

12.8mm

lowest

13.6mm

Water Resistance

200m

200m

Power Reserve

40h

n/a

MSRP

$455

lowest

$499

Movement

Orient F6722

Miyota 9015

Case

4 specs
Diameter
43.4mm
42.5mm
Thickness
12.8mm
13.6mm
Lug-to-Lug
51mm
48mm
Material
Stainless Steel
Bronze

Crystal & Dial

2 specs
Dial Color
Black
n/a
Lume
None
SuperLuminova

Movement

7 specs
Caliber
Orient F6722
Miyota 9015
Beat Rate
21,600 vph
0 vph
Power Reserve
40h
n/a
Jewels
22
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Date
None

Pricing

1 specs
MSRP
$455
$499
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Reviews

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

Orient RA-AC0K Diver Watch

Owners widely report the Orient RA-AC0K Diver Watch exceeds expectations for its price, with many praising its accuracy, though opinions vary, with one owner noting +25 seconds per day while others find it runs within a handful of seconds fast daily. The mineral crystal scratches easily, but the automatic movement is considered very good. Some owners replace the bracelet to enhance the watch's premium feel. Overall, owners rate the Orient RA-AC0K Diver Watch highly for its value and surprisingly good performance for a budget mechanical watch.

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.