Spinnaker PiccardvsLongines HYDROCONQUEST GMT

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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.

Piccard

HYDROCONQUEST GMT
Diameter
45mm
43mm
Lug-to-Lug
52mm
52mm
Thickness
21mm
12.9mm
lowest
Water Resistance
550m
highest
300m
Power Reserve
n/a
72h
MSRP
$550
lowest
$3,350
Movement
Seiko NH35
L844.5
Case
4 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Spinnaker Piccard for its comfortable wear, excellent readability, and bold, vintage-inspired design. However, some consider it a specialty novelty watch, describing the 45mm case as huge and heavy with a large crystal that hinders legibility, making it an acquired taste. On balance, owners appreciate the Spinnaker Piccard for its distinctive aesthetic and comfortable wear, though its size and legibility are polarizing points.
The Longines HYDROCONQUEST GMT is widely praised for its excellent finishing, with one owner comparing it to a Submariner, and its classy blue sunburst dial. Some owners find the round markers at 6 and 9 disrupt dial symmetry, while others appreciate this design as a unique feature. The watch is considered a practical combination for travelers and divers, offering good value compared to pricier alternatives. Minor criticisms include the tiny GMT text beneath the hour markers being difficult to read at a glance, no quick date adjust feature, a mismatched date wheel color on some dial variants, and a sharp feeling on the bracelet's clasp. Overall, owners rate the Longines HYDROCONQUEST GMT highly for its robust build and practical GMT functionality at its price point.
The exclusive traveler's GMT movement is a significant strength. Reviewers noted the value proposition rivals higher-priced competitors. Areas for improvement were mentioned but not detailed.
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