Oris Aquis Date Calibre 400vsHELM Vanuatu Titanium

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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 Titanium at true scale

Vanuatu Titanium

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

$350

lowest

Movement

Oris Calibre 400

Seiko NH35

Case

6 specs
Diameter
41.5mm
42mm
Thickness
n/a
14mm
Lug-to-Lug
n/a
50mm
Material
Stainless Steel
Titanium
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
$350
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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 Titanium

The HELM Vanuatu Titanium is widely praised for its lightweight titanium construction, brushed gunmetal finish, simple and legible design, excellent lume, and drilled lugs, representing strong value at $300. Owners report that the unhardened titanium scratches easily, and some find the 42mm case too large for smaller wrists, while long waiting lists are also a notable drawback. Some owners express a preference for Miyota 9x movements over the Seiko NH series. Overall, owners rate the HELM Vanuatu Titanium highly for its titanium build and excellent lume at the price point.