Side by side

Marnaut Safe Harbour 100CvsSinn U18

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

Add a watch
Safe Harbour 100C
MarnautSafe Harbour 100C
MSRP $899
U18
SinnU18
MSRP $3,488
Buy from Marnaut ↗
Buy used on eBay ↗
Buy from Sinn ↗
Buy used on eBay ↗

At a glance

15 of 29 specs differ
Diameter
Safe Harbour 100C39mm
U1844mm
Power Reserve
Safe Harbour 100C41h
U1842h
Water Resistance
Safe Harbour 100C100m
U182,000m
MSRP
Safe Harbour 100C$899
U18$3,488

Full specifications

Case

9 specs
Category
—
Diver
Diameter
39mm
44mm
Thickness
13mm
15.5mm
Lug-to-Lug
45mm
—
Lug Width
20mm
22mm
Material
Stainless Steel
high-strength
Finish
Brushed and polished
—
Water Resistance
100m
2000m
Caseback
Solid
—

Crystal & Dial

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

Movement

2 specs
Caliber
Sellita SW200-1
SW300-1
Power Reserve
41h
42h

Pricing

1 specs
MSRP
$899
$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.

Pompeak Sub-Aquatic
Pompeakmicro

Sub-Aquatic

3 variantsRef.
40mm·Automatic·200m WR
$915MSRP
—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
Eza 1972 Diver
Ezamicro

1972 Diver

Ref. 1972-diver-anniversary-edition
39.6mm·Automatic·200m WR
$1,411MSRP
—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
Circula Watches SuperSport
Circula Watchesmicro

SuperSport

40mm·Automatic·300m WR
—MSRP
—Used
Bremont S502
Bremontmicro
Supermarine

S502

8 watches · 39 variantsSupermarine
43mm·Automatic·500m WR
$5,100MSRP
—Used
Circula Watches AquaSport II
Circula Watchesmicro

AquaSport II

10 variantsRef.
40mm·Automatic·200m WR
—MSRP
—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 Safe Harbour 100C →All alternatives to the U18 →
Explore the full catalog

Follow this matchup

Get a note when Marnaut Safe Harbour 100C 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.

Marnaut Safe Harbour 100C Safe Harbour Classic 100 (cushion case, multi-subdial complication, applied batons)vsSinn U18Pompeak Sub-AquaticvsSinn U18Eza 1972 DivervsSinn U18Circula Watches SuperSportvsSinn U18Marathon OSAR-D (Original SAR with Date) Automatic 46mmvsMarnaut Safe Harbour 100CMarathon JDD (Jumbo Day/Date) Anthracite Diver's AutomaticvsMarnaut Safe Harbour 100C
Edit this comparisonAdd another watch