Side by side

Borealis Watch Co. Porto CovovsGrand Seiko SBGA293

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Porto Covo
Borealis Watch Co.Porto Covo
MSRP $415
SBGA293
Grand SeikoSBGA293
MSRP $5,200
What people say

Owners + reviewers, side by side

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

Borealis Watch Co. Porto Covo

The Borealis Porto Covo is widely praised for its 39mm size and unique cantilevered indices that create a 3D effect and depth. Owners note the indices' floating appearance is a well-executed design. One owner reported poor accuracy and a terse customer service response, while another wished for a 42mm size option. The $395 price is considered reasonable for a microbrand, though some feel it does not compare favorably to AliExpress options. Overall, owners appreciate the Borealis Porto Covo for its distinctive dial design and wearable 39mm case size.

Grand Seiko SBGA293

Grand Seiko SBGA293 owners praise its light cream dial and exceptionally well-finished markers and hands. The Spring Drive movement is highlighted as a special feature, offering high accuracy and a blend of jewelry and technology, though the rotor can be audible. Some owners find the case size a concern for formal wear, while others consider it not particularly thick and appreciate the Spring Drive's unique horology, accuracy, and reliability. On balance, owners rate the Grand Seiko SBGA293 highly for its unique Spring Drive movement and refined dial and hand finishing.

At a glance

12 of 29 specs differ
Diameter
Porto Covo40mm
SBGA29340.2mm
Power Reserve
Porto Covo40h
SBGA29372h
Water Resistance
Porto Covo300m
SBGA293100m
MSRP
Porto Covo$415
SBGA293$5,200

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
40.2mm
Thickness
11.6mm
12.8mm
Lug-to-Lug
42.5mm
48.5mm
Lug Width
20mm
19mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9039
9R65
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$415
$5,200
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