Side by side

Borealis Watch Co. SintravsTudor Black Bay One 31 S&G

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

Sintra
Borealis Watch Co.Sintra
MSRP $650
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

12 of 29 specs differ
Diameter
Sintra41.50mm
Black Bay One 31 S&G31mm
Power Reserve
Sintra40h
Black Bay One 31 S&G50h
Water Resistance
Sintra200m
Black Bay One 31 S&G100m
MSRP
Sintra$650
Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs
Category
Sport
Diameter
41.50mm
31mm
Thickness
12.95mm
9.5mm
Lug-to-Lug
47.00mm
46mm
Lug Width
20mm
17mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
200m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

1 specs
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9015
MT5201
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$650
$6,850

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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. 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.

Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G is praised for its quiet luxury, combining brushed steel and warm gold accents for understated charm. Owners appreciate the brushed gold for a casual two-tone look and the champagne dial's surprising legibility. Some find the case sides too thick, and one user expressed a desire for a smaller S&G variant. The watch features the MT5612 movement with a 70-hour power reserve and a date function, within a 200-meter water-resistant case. Overall, owners and reviewers highlight the Tudor Black Bay One 31 S&G's balanced two-tone aesthetic as its primary appeal.

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