Nodus Duality IIvsFormex Reef 39.5 mm
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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.

Duality II

Reef 39.5 mm
Diameter
40mm
39.5mm
Lug-to-Lug
48mm
45.5mm
lowest
Thickness
11.5mm
11mm
lowest
Water Resistance
300m
300m
Power Reserve
41h
56h
highest
MSRP
$875
lowest
$2,230
Movement
Miyota 9015
Sellita SW300-1
Case
4 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Nodus Duality II is praised for its refined dial construction, improved proportions, and wearability, with reviewers noting its thinner 11.5mm case and elegant design. Owners highlight the dual-crown functionality for the internal rotating bezel, the durable three-link bracelet with the NodeX extension, and the US assembly as justifying its price. Some owners find the watch overpriced at $868, citing a loud rotor and lower-quality bracelet, while others prefer Nodus finishing over competitors. The Nodus Duality II uses a Miyota 9015 automatic movement and offers 300 meters of water resistance. Overall, owners and reviewers rate the Nodus Duality II highly for its refined design and functional dual-crown system at its price point.
The case finishing and dual-crown compressor design are praised. The lume brightness is considered average. Reviewers disagreed on the movement accuracy, with some noting it was regulated to +/- 8 seconds per day and others not specifying.
The Formex Reef 39.5 mm is widely praised for its refined finishing, improved proportions, and compelling value under €2,000. Owners and reviewers highlight its comfortable wearability on smaller wrists, unique aesthetic, and impressive specifications including 300m water resistance and a COSC-certified Sellita SW300-1 movement. Some note the 22mm lug width feels slightly disproportionate and the bracelet could benefit from more taper. A prototype crown protrusion issue is expected to be resolved in production. Overall, owners rate the Formex Reef 39.5 mm highly for its excellent build quality and tool-like features at its price point.
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