Side by side

Borealis Watch Co. SintravsCitizen Series 8 870

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

Sintra
Borealis Watch Co.Sintra
MSRP $650
Series 8 870
CitizenSeries 8 870
MSRP $1,595

At a glance

12 of 29 specs differ
Diameter
Sintra41.50mm
Series 8 87040.8mm
Power Reserve
Sintra40h
Series 8 87050h
Water Resistance
Sintra200m
Series 8 870100m
MSRP
Sintra$650
Series 8 870$1,595

Full specifications

Case

6 specs
Category
Sport
Dress
Diameter
41.50mm
40.8mm
Thickness
12.95mm
12mm
Lug-to-Lug
47.00mm
46mm
Lug Width
20mm
11mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Black
Grey
Lume
BGW9
None

Movement

2 specs
Caliber
Miyota 9015
0950
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$650
$1,595

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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.

Citizen Series 8 870

The Citizen Series 8 870 is praised for its sharp 40mm steel case with unique bezel construction and a glossy dial featuring finely brushed and polished applied hour markers. It is powered by the in-house caliber 0950 automatic movement, which operates at 4Hz and offers a 50-hour power reserve with enhanced magnetic resistance. The limited edition features a black Duratect DLC coated case, a carbon fiber dial, and is regulated to -5/+10 seconds per day. On balance, reviewers highlight the Series 8 870's distinctive case finishing and the robust in-house movement as key strengths.

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