Side by side

Boldr Odyssey RegattavsSinn U18

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

Odyssey Regatta
BoldrOdyssey Regatta
MSRP $1,499
U18
SinnU18
MSRP $3,488
What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Boldr Odyssey Regatta

The Boldr Odyssey Regatta is noted for its robust functionality and utilitarian design, powered by a Valjoux 7750 Elaboré movement. It features a tachymeter bezel graduated in knots and offers 500m water resistance. While its 45.5mm diameter, 18.2mm thickness, and 245g weight make it a substantial timepiece, it wears better than its dimensions might suggest. Overall, owners and reviewers highlight the Boldr Odyssey Regatta's workhorse movement and functional tool-watch capabilities.

From video reviewers

500m water resistance is a consistently praised feature. The watch's significant weight and large case size were noted as drawbacks by multiple reviewers. Reviewers disagreed on whether the bezel's 15-minute markings were redundant given the regatta complication.

Sinn U18

The Sinn U18 is praised for its unique deep blue/green dial with three-dimensional oxygen bubbles that change with light, and its comfortable, easily adjustable bracelet. Owners find the watch stunning and a piece of history, appreciating the refined hands. The Sinn U18 features a 44mm, 15.5mm thick case made from German submarine steel, offering a 2000-meter dive specification and Sinn's Ar-Dehumidifying technology, powered by a Sellita SW300-1 movement. The case thickness is apparent, and the watch comes as a complete set with box and papers for $3,000-$3,680. On balance, owners and reviewers rate the Sinn U18 highly for its striking dial and robust build.

At a glance

15 of 29 specs differ
Diameter
Odyssey Regatta45.5mm
U1844mm
Power Reserve
Odyssey Regatta40h
U1842h
Water Resistance
Odyssey Regatta500m
U182,000m
MSRP
Odyssey Regatta$1,499
U18$3,488

Full specifications

Case

7 specs
Diameter
45.5mm
44mm
Thickness
16mm
15.5mm
Lug-to-Lug
52mm
Material
Stainless Steel
high-strength
Finish
Brushed and polished
Water Resistance
500m
2000m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Yes
Dial Color
Regatta Admiral Blue
Black
Indices
Applied
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
ETA Valjoux 7750
SW300-1
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$1,499
$3,488
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