Side by side

Borealis Watch Co. SintravsFortis Marinemaster M-40

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

Sintra
Borealis Watch Co.Sintra
MSRP $650
Marinemaster M-40
FortisMarinemaster M-40
MSRP $3,520

At a glance

12 of 29 specs differ
Diameter
Sintra41.50mm
Marinemaster M-4040mm
Power Reserve
Sintra40h
Marinemaster M-4038h
Water Resistance
Sintra200m
Marinemaster M-40300m
MSRP
Sintra$650
Marinemaster M-40$3,520

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
41.50mm
40mm
Thickness
12.95mm
13mm
Lug-to-Lug
47.00mm
Lug Width
20mm
21mm
Water Resistance
200m
300m

Crystal & Dial

2 specs
Dial Color
Black
Orange
Lume
BGW9
None

Movement

3 specs
Caliber
Miyota 9015
Sellita SW220-1
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$650
$3,520

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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.

Fortis Marinemaster M-40

Owners praise the Fortis Amber Orange for its gorgeous appearance and strong wrist presence, noting its crazy lume and 70-hour power reserve. The Doxa SUB 300T, described as having a superb, eccentric design with a highly legible dial and functional no-decompression bezel, uses an ETA 2824-2 movement. However, the SUB 300T's 42.5mm case wears large and its 14mm thickness is not ideal for dress shirts, though it boasts 1,200m water resistance. On balance, owners appreciate the Fortis Amber Orange for its striking aesthetics and impressive lume.

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