Side by side

Oris Aquis Pro 4000mvsBremont Altitude Chronograph

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

Aquis Pro 4000m
OrisAquis Pro 4000m
MSRP $6,900
Altitude Chronograph
BremontAltitude Chronograph
MSRP $6,300

At a glance

18 of 29 specs differ
Diameter
Aquis Pro 4000m49.5mm
Altitude Chronograph42mm
Power Reserve
Aquis Pro 4000m120 hoursh
Altitude Chronograph40h
Water Resistance
Aquis Pro 4000m4,000m
Altitude Chronograph100m
MSRP
Aquis Pro 4000m$6,900
Altitude Chronograph$6,300

Full specifications

Case

8 specs
Category
Diver
Chronograph
Diameter
49.5mm
42mm
Thickness
14.7mm
Lug Width
26mm
14.7mm
Material
Titanium
316L Stainless Steel (DLC coated)
Finish
Brushed and polished
Water Resistance
4000m
100m
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Silver
Indices
Applied

Movement

5 specs
Caliber
CALIBRE 400
BE-50AE
Beat Rate
4 vph
28,800 vph
Power Reserve
120 hoursh
40h
Jewels
21
25
Complications
Date
None

Pricing

1 specs
MSRP
$6,900
$6,300

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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.

Bremont Altitude Chronograph

Owners note faint marks on the case sides and back, with minor wear and creasing on the strap. Reviewers flag the "DANGER EJECTION SEAT" wordmark on the dial as a divisive design choice that disrupts the MB series' usual stark tone, though they praise the improved smoothness and click precision of the Roto Click rotating bezel. On balance, the Bremont Altitude Chronograph elicits mixed reactions, with design elements like the dial text being a point of contention for reviewers.

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