Side by side

Borealis Watch Co. Porto CovovsGrand Seiko SBGC253

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
SBGC253
Grand SeikoSBGC253
MSRP $13,200

At a glance

13 of 29 specs differ
Diameter
Porto Covo40mm
SBGC25344.5mm
Power Reserve
Porto Covo40h
SBGC25372h
Water Resistance
Porto Covo300m
SBGC253200m
MSRP
Porto Covo$415
SBGC253$13,200

Full specifications

Case

7 specs
Category
Diver
Chronograph
Diameter
40mm
44.5mm
Thickness
11.6mm
16.8mm
Lug-to-Lug
42.5mm
50mm
Lug Width
20mm
23mm
Material
Stainless Steel
Titanium
Water Resistance
300m
200m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9039
9R86
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$415
$13,200

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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 SBGC253

The Grand Seiko SBGC253 is praised for its substantial yet surprisingly light feel due to high-intensity titanium, a captivating dial with polished accents, and an exceptionally smooth chronograph action. Its dual-color lume is noted as visually striking, though its distinction fades in low light, and the exceptional anti-reflective coating makes the sapphire crystal nearly disappear. Some find the pushers unappealing and the dial's asymmetry with an off-center logo unconvincing, though others praise its gorgeous case shape and consider it a beautiful showcase of Grand Seiko's capabilities. One owner swapped to a leather strap for enhanced comfort and aesthetics. Overall, owners rate the Grand Seiko SBGC253 highly for its unique case material and smooth chronograph execution, despite some polarizing design elements.

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