Side by side

Borealis Watch Co. Porto CovovsLongines FLAGSHIP HERITAGE MOONPHASE

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
FLAGSHIP HERITAGE MOONPHASE
LonginesFLAGSHIP HERITAGE MOONPHASE
MSRP $3,450

At a glance

21 of 29 specs differ
Diameter
Porto Covo40mm
FLAGSHIP HERITAGE MOONPHASE38.5mm
Power Reserve
Porto Covo40h
FLAGSHIP HERITAGE MOONPHASE72h
Water Resistance
Porto Covo300m
FLAGSHIP HERITAGE MOONPHASE30m
MSRP
Porto Covo$415
FLAGSHIP HERITAGE MOONPHASE$3,450

Full specifications

Case

8 specs
Category
Diver
Moonphase
Diameter
40mm
38.5mm
Thickness
11.6mm
12.4mm
Lug-to-Lug
42.5mm
46.3mm
Lug Width
20mm
19mm
Finish
Brushed and polished
Water Resistance
300m
30m
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
Black
Ivory
Indices
Applied
Applied indexes
Lume
BGW9
Super-LumiNova

Movement

7 specs
Caliber
Miyota 9039
L899.5
Beat Rate
28,800 vph
25,200 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, moon phase display and date indicated by small hand at

Pricing

1 specs
MSRP
$415
$3,450

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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.

Longines FLAGSHIP HERITAGE MOONPHASE

The Longines Flagship Heritage Moonphase is widely praised for its elegant aesthetic, balanced midnight blue dial with dauphine hands and wedge indices, and the L899.5 movement's 72-hour power reserve. Owners appreciate its value, classy integrated moonphase complication with a night blue background and shiny silver stars, and comfortable 38.5mm case size with good finishing, fitting well on smaller wrists. However, reviewers and owners note its minimal 30-meter water resistance, a 3 o'clock crown that appears undersized, and a thickness of 12.4mm, which some find hinders its dress watch suitability and ability to slip under a cuff, though others find it wearable. Some also consider the design overly traditional and the rehaut depth excessive. On balance, owners and reviewers rate the Longines Flagship Heritage Moonphase highly for its elegant design and value proposition at its price point.

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