Oris Aquis Date Calibre 400vsHELM Vanuatu

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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.

Oris Aquis Date Calibre 400 at true scale

Aquis Date Calibre 400

HELM Vanuatu at true scale

Vanuatu

Diameter

41.5mm

42mm

Lug-to-Lug

n/a

50mm

Thickness

n/a

14mm

Water Resistance

300m

300m

Power Reserve

120h

highest

40h

MSRP

$5,150

$285

lowest

Movement

Oris Calibre 400

Seiko NH35

Case

5 specs
Diameter
41.5mm
42mm
Thickness
n/a
14mm
Lug-to-Lug
n/a
50mm
Finish
n/a
n/a
Caseback
n/a
n/a

Crystal & Dial

5 specs
Crystal Shape
n/a
n/a
AR Coating
Underside
Yes
Dial Color
Blue
Black
Indices
n/a
n/a
Lume
None
Super-LumiNova

Movement

4 specs
Caliber
Oris Calibre 400
Seiko NH35
Beat Rate
4 vph
0 vph
Power Reserve
120 hoursh
40h
Jewels
21
24

Pricing

1 specs
MSRP
$5,150
$285
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Reviews

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

Oris Aquis Date Calibre 400

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.

From video reviewers

The 5-day power reserve of the Calibre 400 movement is a significant strength. No shared weaknesses were identified.

HELM Vanuatu

HELM Vanuatu owners widely praise its exceptional comfort and value, with many highlighting its less overbearing feel on the wrist compared to other dive watches. The titanium bracelet is frequently cited as a key comfort feature, described as "uber-comfortable." Owners also note a great bezel and overall impressive quality for the price. On balance, owners rate the HELM Vanuatu highly for its comfort and perceived quality at the price point.

From video reviewers

The case finishing is consistently praised. The bracelet is noted as having significant rattle.

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