Side by side

Borealis Watch Co. Porto CovovsGrand Seiko SBGP009

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
SBGP009
Grand SeikoSBGP009
MSRP $3,100

At a glance

11 of 29 specs differ
Diameter
Porto Covo40mm
SBGP00940mm
Power Reserve
Porto Covo40h
SBGP00940h
Water Resistance
Porto Covo300m
SBGP009100m
MSRP
Porto Covo$415
SBGP009$3,100

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
40mm
Thickness
11.6mm
10.6mm
Lug-to-Lug
42.5mm
47mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9039
9F85
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$415
$3,100

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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 SBGP009

Grand Seiko SBGP009 owners note its "normal quartz" movement, and one owner criticizes the bracelet for lacking a taper. One owner cites a 40-year-old Seiko quartz watch that has only required battery changes as evidence of the reliability of Grand Seiko's quartz movements. On balance, owners value the Grand Seiko SBGP009 for its perceived long-term reliability.

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