Side by side

Borealis Watch Co. Porto CovovsSugess Seestern S434 Pro Diver

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
Seestern S434 Pro Diver
SugessSeestern S434 Pro Diver
MSRP $249

At a glance

13 of 29 specs differ
Diameter
Porto Covo40mm
Seestern S434 Pro Diver40mm
Power Reserve
Porto Covo40h
Seestern S434 Pro Diver40h
Water Resistance
Porto Covo300m
Seestern S434 Pro Diver200m
MSRP
Porto Covo$415
Seestern S434 Pro Diver$249

Full specifications

Case

7 specs
Diameter
40mm
40mm
Thickness
11.6mm
12mm
Lug-to-Lug
42.5mm
46mm
Lug Width
20mm
20mm
Material
Stainless Steel
Stainless Steel/Rose Gold
Water Resistance
300m
200m
Caseback
Solid
Engraved

Crystal & Dial

2 specs
Dial Color
Black
2 Salmon
Lume
BGW9
Super-LumiNova BGW9

Movement

3 specs
Caliber
Miyota 9039
NH35
Beat Rate
28,800 vph
3 vph
Complications
None
GMT, Chronograph, Moonphase, Date

Pricing

1 specs
MSRP
$415
$249

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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.

Sugess Seestern S434 Pro Diver

Owners widely praise the Sugess Seestern S434 Pro Diver for its impressive finishing and craftsmanship at its price point, highlighting the applied indices that play with light, excellent BGW9 lume, and attractive color options. Specific positive notes include the domed sapphire crystal, short lug-to-lug, and on-the-fly clasp adjustment. However, some owners report quality control issues such as misaligned bezels or indices, while others with V2 models experience no such problems. Caveats include slight bezel back play, light AR coating on the crystal, and a clasp that could be smoother, with one owner desiring a color-matched date wheel. On balance, owners rate the Sugess Seestern S434 Pro Diver highly for its exceptional value and build quality, particularly the dial finishing and lume.

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