Side by side

Oris Aquis Date Calibre 400vsFormex Reef 42 mm

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

Aquis Date Calibre 400
OrisAquis Date Calibre 400
MSRP $5,150
Reef 42 mm
FormexReef 42 mm
MSRP $2,414

At a glance

16 of 29 specs differ
Diameter
Aquis Date Calibre 40041.5mm
Reef 42 mm42mm
Power Reserve
Aquis Date Calibre 400120 hoursh
Reef 42 mm56h
Water Resistance
Aquis Date Calibre 400300m
Reef 42 mm300m
MSRP
Aquis Date Calibre 400$5,150
Reef 42 mm$2,414

Full specifications

Case

5 specs
Diameter
41.5mm
42mm
Thickness
11.4mm
Lug-to-Lug
47mm
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Blue
Black
Indices
Applied
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
CALIBRE 400
Sellita SW300-1
Beat Rate
4 vph
28,800 vph
Power Reserve
120 hoursh
56h
Jewels
21
25
Complications
Date
None

Pricing

1 specs
MSRP
$5,150
$2,414

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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 Date Calibre 400

The Oris Aquis Date Calibre 400 is widely lauded for its exclusive in-house movement, offering a five-day power reserve, 10-year warranty, and 10-year service interval. Reviewers and owners praise its impressive accuracy, with figures ranging from under a second per day to seven seconds fast per day. The watch features a refined case with slimmer lugs and an updated dial for improved ergonomics, a patented quick-change system for straps, and a smooth, precise bezel action. Some find the dial can be shiny with glare from the domed crystal. Overall, owners and reviewers rate the Oris Aquis Date Calibre 400 highly for its significant advancements in mechanical watchmaking and value proposition.

Formex Reef 42 mm

The Formex Reef 42 mm is widely praised for its comfortable bracelet featuring a micro-adjust clasp, COSC-certified Sellita movement, and excellent build quality. Owners appreciate the gradient dial's visual appeal and the overall wearability. Some owners note the seconds hand does not perfectly align with markers, and one owner found the lugs' taper hinders third-party strap fit. The bracelet's length and sporty design are noted as limiting versatility by some. On balance, owners and reviewers rate the Formex Reef 42 mm highly for its impressive wearability and value at the price point.

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