Side by side

Boldr Odyssey 40mmvsSinn U18

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

Add a watch
Odyssey 40mm
BoldrOdyssey 40mm
MSRP $799
U18
SinnU18
MSRP $3,488
Buy from Boldr ↗
Buy used on eBay ↗
Buy from Sinn ↗
Buy used on eBay ↗

At a glance

15 of 29 specs differ
Diameter
Odyssey 40mm40mm
U1844mm
Power Reserve
Odyssey 40mm42h
U1842h
Water Resistance
Odyssey 40mm300m
U182,000m
MSRP
Odyssey 40mm$799
U18$3,488

Full specifications

Case

8 specs
Diameter
40mm
44mm
Thickness
12.5mm
15.5mm
Lug-to-Lug
48mm
—
Lug Width
20mm
22mm
Material
Titanium
high-strength
Finish
Brushed and polished
—
Water Resistance
300m
2000m
Caseback
Solid
—

Crystal & Dial

5 specs
Crystal Shape
Flat
—
AR Coating
Yes
—
Dial Color
Aurora
Black
Indices
Applied
—
Lume
Super-LumiNova
None

Movement

1 specs
Caliber
Miyota
SW300-1

Pricing

1 specs
MSRP
$799
$3,488
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Baltic Aquascaphe Titanium
Balticmicro

Aquascaphe Titanium

2 variantsAquascaphe Titanium
41mm·Automatic·300m WR
$788MSRP
—Used
Marathon OSAR-D (Original SAR with Date) Automatic 46mm
Marathonmicro

OSAR-D (Original SAR with Date) Automatic 46mm

6 watches · 6 variantsOSAR
46mm·Automatic·300m WR
$2,500MSRP
—Used
Borealis Watch Co. Porto Covo
Borealis Watch Co.micro

Porto Covo

2 variantsPorto Covo
40mm·Automatic·300m WR
$415MSRP
—Used
Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic
Marathonmicro

JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Ref. 46mm-anthracite-large-divers-automatic-jdd
46mm·Automatic·300m WR
$3,250MSRP
—Used
Zelos Blacktip 200m Ti
Zelosmicro

Blacktip 200m Ti

3 watches · 15 variantsBlacktip
41mm·Automatic·200m WR
$599MSRP
—Used
Bremont S502
Bremontmicro
Supermarine

S502

8 watches · 39 variantsSupermarine
43mm·Automatic·500m WR
$5,100MSRP
—Used
Geckota Sea-Hunter Dive Watch
Geckotamicro

Sea-Hunter Dive Watch

6 variantsSea-Hunter
40mm·Automatic·200m WR
$349MSRP
—Used
Fortis Marinemaster M-44 DLC
Fortismicro

Marinemaster M-44 DLC

3 watches · 15 variantsMarinemaster
44mm·Automatic·300m WR
$5,450MSRP
—Used
All alternatives to the Odyssey 40mm →All alternatives to the U18 →
Explore the full catalog

Follow this matchup

Get a note when Boldr Odyssey 40mm vs Sinn U18 gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Baltic Aquascaphe TitaniumvsSinn U18Boldr Odyssey FreedivervsSinn U18Borealis Watch Co. Porto CovovsSinn U18Sinn U18vsZelos Blacktip 200m TiMarathon OSAR-D (Original SAR with Date) Automatic 46mmvsBoldr Odyssey 40mmMarathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsBoldr Odyssey 40mm
Edit this comparisonAdd another watchMore diver comparisonsBest Diver Watches Under $1,000Explore more 39–45mm watches