Circula Watches AquaSport IIvsLongines HydroConquest
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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.

AquaSport II

HydroConquest
Diameter
40mm
43mm
Lug-to-Lug
46mm
lowest
53.5mm
Thickness
12.6mm
11.9mm
lowest
Water Resistance
200m
300m
highest
Power Reserve
41h
72h
highest
MSRP
n/a
$2,000
Movement
Sellita SW200-1
Longines L888
Case
5 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers widely praise the Circula Watches AquaSport II for its 1970s-inspired design, comfortable 40mm wearability, and attractive dial with applied indices that catches light and shadow. The hand-crafted case finishing is described as incredible, and the lume is spectacular. The bezel action is noted as subtle and solid, and the Sellita SW200-1 automatic movement is considered reliable. The watch is competitively priced starting at EUR 599, with owners finding it offers significant value for the money, often including extra straps. Overall, owners and reviewers rate the Circula Watches AquaSport II highly for its exceptional finishing and value proposition at its price point.
Owners widely praise the Longines HYDROCONQUEST for its attractive sunburst dials and near COSC accuracy, with one owner noting a movement losing only about 2 seconds per day. However, opinions are divided on the bracelet, with some finding it comfortable and featuring a useful slide-lock extension, while others criticize it for lacking micro-adjustments, having pinch-prone links, sharp lugs, and an uncomfortable feel. The screw-down crown operation is also a point of contention, described by some as inconvenient or difficult. On balance, owners rate the Longines HYDROCONQUEST highly for its striking dial and value, despite mixed views on its bracelet and crown usability.
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