Aquastar Deepstar IIvsKnot Watches Knot AT1-40SSV

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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.

Deepstar II

Knot AT1-40SSV
Diameter
37mm
40mm
Lug-to-Lug
46mm
n/a
Thickness
12mm
11mm
lowest
Water Resistance
200m
200m
Power Reserve
n/a
42h
MSRP
n/a
$628
Movement
Sellita SW290-1
Miyota 9015
Case
5 specsCrystal & Dial
1 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Aquastar Deepstar II for its comfortable 37mm wearability, vintage aesthetic, and excellent value. Reviewers and owners alike highlight its smooth-winding Sellita SW290-1 movement, remarkable timekeeping, and legible dial with excellent lume. The updated beads-of-rice bracelet with a diver extension is considered a worthwhile upgrade, and the included grey tropic strap is notably supple. Some owners, however, find the 37mm case diameter too small, despite the 47mm lug-to-lug contributing to a larger perceived wrist presence. One owner dislikes the small seconds subdial, finding it interrupts the dial's aesthetic. Overall, owners and reviewers rate the Aquastar Deepstar II highly for its vintage charm, comfortable wearability, and strong value proposition.
The vintage design and 37mm case size are praised. The price point is considered a strong point by one reviewer, while another suggests it may limit its appeal.
Owners widely praise the Knot AT1-40SSV for its versatile 40mm size and excellent wearability, with many appreciating its surprising lightness and the clean dial design. The lume is noted as strong, and accuracy is reported around +4 seconds per day. Some owners find the initial stiffness of the premium strap a minor issue, though its well-machined buckle is well-regarded. One owner flags the small crown as a significant drawback due to its size and placement. On balance, owners rate the Knot AT1-40SSV highly for its comfortable wearability and attractive dial at the price point.
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