Side by side

Oris Aquis Pro 4000mvsOrient M-Force AC0L

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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What people say

Owners + reviewers, side by side

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

Oris Aquis Pro 4000m

The Oris Aquis Pro 4000m is widely acknowledged as a substantial dive tool, with reviewers and owners alike noting its impressive 49.5mm diameter and 23.4mm to 25mm thickness. Despite its size, the titanium case and comfortable rubber strap contribute to surprisingly good wearability for some, though others find its dimensions impractical for daily wear. The patented Rotation Safety System for the bezel is praised for its intelligence and functionality, while the in-house Calibre 400 movement offers a 120-hour power reserve and a 10-year warranty. One owner notes that the clasp's quick-adjust pushers can be unintentionally activated during watch removal. Overall, owners and reviewers regard the Oris Aquis Pro 4000m as a stunning, albeit chunky, tool watch whose impressive specifications are its primary draw.

From video reviewers

The Oris Aquis Pro 4000m's robust titanium case and 4000m water resistance are frequently cited strengths. However, the large 49.5mm case size is noted as a significant consideration for wearability.

Orient M-Force AC0L

Orient M-Force AC0L owners widely praise its robust build, distinctive neo-retro design, and excellent value, with many highlighting its mirror and satin finishing that enhances its angular case. Reviewers and owners alike commend its modern specifications, including a sapphire crystal and ISO certification for shock resistance and anti-magnetism, positioning it as a durable beater watch. Accuracy figures vary, with one owner reporting +3/-2 seconds per day and another noting +12 seconds per day, while some find the stock bracelet's quality and clasp disappointing. Low-light legibility and lume are considered poor by some, and a wobbly crown has been reported by a few owners. On balance, owners and reviewers rate the Orient M-Force AC0L highly for its durable construction and unique design at its price point.

At a glance

18 of 29 specs differ
Diameter
Aquis Pro 4000m49.5mm
M-Force AC0L45mm
Power Reserve
Aquis Pro 4000m120 hoursh
M-Force AC0L40h
Water Resistance
Aquis Pro 4000m4,000m
M-Force AC0L200m
MSRP
Aquis Pro 4000m$6,900
M-Force AC0L$605

Full specifications

Case

8 specs
Diameter
49.5mm
45mm
Thickness
13.2mm
Lug-to-Lug
52mm
Lug Width
26mm
20mm
Material
Titanium
Stainless Steel
Finish
Water Resistance
4000m
200m
Caseback

Crystal & Dial

3 specs
Crystal Shape
Dial Color
Blue
Black
Indices

Movement

6 specs
Caliber
Oris Calibre 400
Orient F6 Series
Beat Rate
4 vph
21,600 vph
Power Reserve
120 hoursh
40h
Jewels
21
22
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$6,900
$605
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