Astor + Banks Sea Ranger M2vsNodus Duality II
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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.

Sea Ranger M2

Duality II
Diameter
40mm
40mm
Lug-to-Lug
45.5mm
lowest
48mm
Thickness
12.5mm
11.5mm
lowest
Water Resistance
300m
300m
Power Reserve
n/a
41h
MSRP
$1,299
$875
lowest
Movement
La Joux-Perret G100
Miyota 9015
Case
3 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Astor + Banks Sea Ranger M2 is noted for its functional and balanced design, excellent legibility, and a 12-hour lumed sapphire bezel. Reviewers highlight its good lume, though one source describes it as good but not great. The watch features a 40mm case and 300m water resistance. One review states it uses a La Joux-Perret G100 movement regulated to ±8 seconds per day, while another mentions a Sellita SW200 automatic movement adjusted by the brand. The pre-order price is $650, with a standard price of $850. On balance, reviewers find the Astor + Banks Sea Ranger M2 to be a compelling GADA watch, with its design and legibility being key strengths.
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.
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