Side by side

Borealis Watch Co. SintravsSeiko 5 Sports SKX series

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

Sintra
Borealis Watch Co.Sintra
MSRP $650
5 Sports SKX series
Seiko5 Sports SKX series
MSRP $315

At a glance

10 of 29 specs differ
Diameter
Sintra41.50mm
5 Sports SKX series28mm
Power Reserve
Sintra40h
5 Sports SKX series40h
Water Resistance
Sintra200m
5 Sports SKX series100m
MSRP
Sintra$650
5 Sports SKX series$315

Full specifications

Case

5 specs
Diameter
41.50mm
28mm
Thickness
12.95mm
11.2mm
Lug-to-Lug
47.00mm
33.1mm
Lug Width
20mm
14mm
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire
Hardlex
Lume
BGW9
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Miyota 9015
2R06
Jewels
25
21

Pricing

1 specs
MSRP
$650
$315

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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. Sintra

Borealis Watch Co. Sintra owners widely praise its well-executed design, featuring applied indices and a shimmering blue dial that some prefer over more expensive alternatives. The timepiece is noted for excellent build quality and high-end specifications for its price, including a Miyota 90S5 movement and a premium bracelet. One owner did not purchase due to its size not being 39mm or less, while the 90xx movements are considered reliable and accurate, though some find them noisy. On balance, owners rate the Borealis Watch Co. Sintra highly for its impressive design and build quality at its price point.

Seiko 5 Sports SKX series

Owners widely praise the Seiko 5 Sports SKX series for its iconic dive watch design, robust build, and excellent value, with many appreciating its timeless styling and tool-like character. The movement, while basic, is noted as offering hacking and hand-winding capabilities, and accuracy varies, with many owners reporting +/-5 to 10 seconds per day despite the movement's potential for +/-40 seconds. Some owners find the original SKX models heavier and bulkier than newer iterations, while others critique the lack of a screw-down crown and ISO rating on the newer Seiko 5 Sports SKX series, deeming it less of a serious tool watch. Overall, owners rate the Seiko 5 Sports SKX series highly for its enduring design and value proposition as a robust, everyday watch.

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