Side by side

Borealis Watch Co. Porto CovovsSeiko Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition

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

At a glance

13 of 29 specs differ
Diameter
Porto Covo40mm
Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition40.6mm
Power Reserve
Porto Covo40h
Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition72h
Water Resistance
Porto Covo300m
Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition100m
MSRP
Porto Covo$415
Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition$1,850

Full specifications

Case

6 specs
Category
Diver
Dress
Diameter
40mm
40.6mm
Thickness
11.6mm
12.5mm
Lug-to-Lug
42.5mm
49.1mm
Lug Width
20mm
20mm
Water Resistance
300m
100m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9039
6R51
Power Reserve
40h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$415
$1,850

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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.

Seiko Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition

Seiko Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition owners and reviewers widely praise its beautiful, powdery cream unglazed Arita porcelain dial with a rhombus pattern, contrasting elegantly with gold-toned hands and indices. The 40.6mm stainless steel case is noted for its overall finishing, though some find it thick and heavy. The 72-hour power reserve 6R51 automatic movement is housed within, with one reviewer calling its accuracy rating of -15/+25 seconds per day and 3 Hz frequency somewhat outdated for the watch's price. A notable omission for some is the lack of lume, particularly on the hands. Overall, owners and reviewers rate the Seiko Presage Classic Series “Craftsmanship” Unglazed Arita Porcelain Dial Limited Edition highly for its stunning dial and craftsmanship at the price, despite some reservations about its thickness and movement specifications.

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