Side by side

Borealis Watch Co. SintravsOak & Oscar The Humboldt ExP-02

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

Sintra
Borealis Watch Co.Sintra
MSRP $650
The Humboldt ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400

At a glance

14 of 29 specs differ
Diameter
Sintra41.50mm
The Humboldt ExP-0239.5mm
Power Reserve
Sintra40h
The Humboldt ExP-0256h
Water Resistance
Sintra200m
The Humboldt ExP-02200m
MSRP
Sintra$650
The Humboldt ExP-02$2,400

Full specifications

Case

7 specs
Category
Sport
Tool
Diameter
41.50mm
39.5mm
Thickness
12.95mm
12.4mm
Lug-to-Lug
47.00mm
46.8mm
Lug Width
20mm
20mm
Material
Stainless Steel
316L Stainless Steel
Caseback
Solid
Display

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
Dial Color
Black
Grey
Lume
BGW9
Super-LumiNova BGW9

Movement

3 specs
Caliber
Miyota 9015
Sellita SW300
Power Reserve
40h
56h
Complications
None
GMT, Chronograph

Pricing

1 specs
MSRP
$650
$2,400

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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.

Oak & Oscar The Humboldt ExP-02

Oak & Oscar The Humboldt ExP-02 is a 39.5mm stainless steel tool watch featuring a unique, layered aluminum "ghost dial" for legibility and 200m water resistance, powered by a Sellita SW300 movement. Its appeal is limited by a US$2,550 price and an extremely limited production of 20 pieces, with its experimental dial construction done in Chicago. Overall, reviewers highlight the endearing dial and in-house bezel production as key features of the Oak & Oscar Humboldt ExP-02.

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