Side by side

Sinn U18vsZero West RAF-C (1940)

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

Add a watch
U18
SinnU18
MSRP $3,488
RAF-C (1940)
Zero WestRAF-C (1940)
MSRP $2,750
Buy from Sinn ↗
Buy used on eBay ↗
Buy from Zero West ↗
Buy used on eBay ↗

At a glance

13 of 29 specs differ
Diameter
U1844mm
RAF-C (1940)44mm
Power Reserve
U1842h
RAF-C (1940)38h
Water Resistance
U182,000m
RAF-C (1940)100m
MSRP
U18$3,488
RAF-C (1940)$2,750

Full specifications

Case

7 specs
Category
Diver
—
Thickness
15.5mm
14.1mm
Lug-to-Lug
—
49.6mm
Material
high-strength
Stainless Steel
Finish
—
Brushed and polished
Water Resistance
2000m
100m
Caseback
—
Solid

Crystal & Dial

3 specs
Crystal Shape
—
Flat
AR Coating
—
Inner
Indices
—
Applied

Movement

2 specs
Caliber
SW300-1
ETA 2824
Power Reserve
42h
38h

Pricing

1 specs
MSRP
$3,488
$2,750
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.

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
CWC (Cabot Watch Company) 1980 RN Divers Automatic Re-Issue Watch
CWC (Cabot Watch Company)micro

1980 RN Divers Automatic Re-Issue Watch

Ref. 1980-rn-divers-re
45mm·Automatic·300m WR
$3,747MSRP
—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
Geckota Phalanx
Geckotamicro

Phalanx

8 variantsPhalanx
42mm·Automatic·300m WR
$349MSRP
—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
Crafter Blue Hyperion Ocean
Crafter Bluemicro

Hyperion Ocean

2 variantsRef. crafter-blue-hyperion-ocean-hoss003-p
45mm·Automatic·600m WR
—MSRP
—Used
All alternatives to the U18 →All alternatives to the RAF-C (1940) →
Explore the full catalog

Follow this matchup

Get a note when Sinn U18 vs Zero West RAF-C (1940) 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.

Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsZero West RAF-C (1940)Marathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsZero West RAF-C (1940)Bremont S502vsZero West RAF-C (1940)Fortis Marinemaster M-44 DLCvsZero West RAF-C (1940)CWC (Cabot Watch Company) 1980 RN Divers Automatic Re-Issue WatchvsSinn U18Geckota PhalanxvsSinn U18
Edit this comparisonAdd another watchExplore more 43–45mm watches