Borealis Watch Co. Sea Storm MK2 GMTvsSpinnaker Croft
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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 Storm MK2 GMT

Croft
Diameter
41.5mm
40mm
Lug-to-Lug
48.5mm
47mm
lowest
Thickness
14.2mm
14mm
lowest
Water Resistance
300m
highest
150m
MSRP
$415
$219
lowest
Movement
Seiko NH34
Seiko NH35
Case
5 specsCrystal & Dial
2 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
The Spinnaker Croft is widely praised for its value and vibrant dial colors, with reviewers noting its versatility and sapphire crystal. Owners and reviewers alike point to the bracelet and clasp as areas with budget-friendly limitations, citing friction-fit pins, sharp edges, and a stamped clasp with a stiff security lock. On balance, owners and reviewers rate the Spinnaker Croft well for its strong value proposition and appealing aesthetics at its price point.
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