Oris Aquis Date Calibre 400vsSignum 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.

Aquis Date Calibre 400

Cuda
Diameter
41.5mm
42.5mm
Lug-to-Lug
n/a
48mm
Thickness
n/a
13.6mm
Water Resistance
300m
highest
200m
Power Reserve
120h
n/a
MSRP
$5,150
$499
lowest
Movement
Oris Calibre 400
Miyota 9015
Case
7 specsCrystal & Dial
5 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers widely praise the Oris Aquis Date Calibre 400 for its exclusive in-house Calibre 400 movement, which offers a five-day power reserve, impressive accuracy, and a 10-year warranty. The 41.5mm steel case is considered universally appealing, and the watch features a refined bezel and dial markers for improved ergonomics. Some reviewers note the dial can be shiny with glare from the domed crystal, and one owner reported their watch running 7 seconds fast per day after a few months. Overall, owners and reviewers rate the Oris Aquis Date Calibre 400 highly for its in-house movement and wearability at its price point.
The 5-day power reserve of the Calibre 400 movement is a significant strength. No shared weaknesses were identified.
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.
The fully lumed dial is a standout strength. The bracelet's perceived quality was not consistently addressed.
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