Borealis Watch Co. Sea Storm MK2 GMTvsLongines 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.

Borealis Watch Co. Sea Storm MK2 GMT at true scale

Sea Storm MK2 GMT

Longines HydroConquest GMT at true scale

HydroConquest GMT

Diameter

41.5mm

41mm

Lug-to-Lug

48.5mm

lowest

49.4mm

Thickness

14.2mm

12.9mm

lowest

Water Resistance

300m

300m

MSRP

$415

lowest

$3,350

Movement

Seiko NH34

L844.5

Case

4 specs
Diameter
41.5mm
41mm
Thickness
14.15mm
12.9mm
Lug-to-Lug
48.5mm
49.4mm
Lug Width
20mm
21mm

Crystal & Dial

2 specs
Dial Color
n/a
Green
Lume
BGW9
None

Movement

1 specs
Caliber
Seiko NH34
L844.5

Pricing

1 specs
MSRP
$415
$3,350
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Borealis Watch Co. Sea Storm MK2 GMT

The Borealis Sea Storm MK2 GMT is noted for its retro aesthetic, featuring modern components, a black and white bezel, and an orange GMT hand. Owners highlight its ample lume and a well-made bracelet. The watch is described as being a relatively thick, yet surprisingly wearable, 41.5mm case size, with a date window that integrates smoothly into the dial. Overall, owners rate the Borealis Sea Storm MK2 GMT highly for its retro vibe and modern execution at its price point.

Longines HydroConquest GMT

Owners widely praise the Longines HYDROCONQUEST GMT for its excellent finishing, robust build quality, and comfortable wearability, with some finding its finish superior to higher-priced competitors. The smooth winding action and value proposition are also frequently highlighted. Some owners note that the GMT hour markers are difficult to read, and the date wheel does not always match the dial color. A few reviewers mention a sharp folding clasp and a bezel with bounce-back, while others prefer a smaller case size. Overall, owners and reviewers rate the Longines HYDROCONQUEST GMT highly for its impressive build quality and value as a travel-oriented dive watch.

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