Borealis Watch Co. SintravsHalios Seaforth IV

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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. Sintra at true scale

Sintra

Halios Seaforth IV at true scale

Seaforth IV

Diameter

41.5mm

40mm

Lug-to-Lug

47mm

46.5mm

lowest

Thickness

12.9mm

12.4mm

lowest

Water Resistance

200m

200m

MSRP

$650

lowest

$765

Movement

Miyota 9015

Sellita SW200-1

Case

5 specs
Category
Sport
Diver
Diameter
41.5mm
40mm
Thickness
12.95mm
12.4mm
Lug-to-Lug
47mm
46.5mm
Material
Stainless Steel
Titanium

Crystal & Dial

3 specs
Crystal
Sapphire
Sapphire (double-domed)
Dial Color
n/a
Blue
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9015
Sellita SW200-1

Pricing

1 specs
MSRP
$650
$765
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Reviews

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

Borealis Watch Co. Sintra

Owners widely praise the Borealis Sintra for its well-executed design, blending elements of other popular watches with applied metal indices and drilled lugs. The blue dial is described as stunning with a shimmering texture, and the overall build quality is considered excellent for the price point. Some owners find the Miyota 9015 movement reliable and accurate, though a few note it can be noisy. One user suggested a recessed crown and white lume would improve aesthetics. Overall, owners rate the Borealis Sintra highly for its design and build quality at its price.

Halios Seaforth IV

Owners widely praise the Halios Seaforth IV's wearability on smaller wrists, citing its manageable 40mm case and 47mm lug-to-lug distance. Admiration is frequently directed towards the sunburst blue dial and the well-executed lume on the sapphire bezel. Some owners find the steel bracelet bland on stainless steel variants, and a few express a desire for white dials or larger case sizes. One owner notes the sapphire bezel is flat and taller than preferred. On balance, owners rate the Halios Seaforth IV highly for its accessible size and quality finishing at its price point.

From video reviewers

The sunburst blue dial is a standout feature. Limited water resistance is a shared concern.