Side by side

Borealis Watch Co. SintravsSpinnaker Dumas GMT

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

Sintra
Borealis Watch Co.Sintra
MSRP $650
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

11 of 29 specs differ
Diameter
Sintra41.50mm
Dumas GMT44mm
Power Reserve
Sintra40h
Dumas GMT40h
Water Resistance
Sintra200m
Dumas GMT300m
MSRP
Sintra$650
Dumas GMT$399

Full specifications

Case

7 specs
Category
Sport
GMT
Diameter
41.50mm
44mm
Thickness
12.95mm
15mm
Lug-to-Lug
47.00mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
200m
300m

Crystal & Dial

2 specs
Dial Color
Black
Blue
Lume
BGW9
None

Movement

1 specs
Caliber
Miyota 9015
Seiko NH34A

Pricing

1 specs
MSRP
$650
$399

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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.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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