Side by side

Sheffield Deep Gray 300vsSpinnaker Dumas Automatic

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

Add a watch
Deep Gray 300
SheffieldDeep Gray 300
MSRP $258
Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
Buy from Sheffield ↗
Buy used on eBay ↗
Buy from Spinnaker ↗
Buy used on eBay ↗

At a glance

8 of 29 specs differ
Diameter
Deep Gray 30042mm
Dumas Automatic44mm
Power Reserve
Deep Gray 30040h
Dumas Automatic40h
Water Resistance
Deep Gray 300300m
Dumas Automatic300m
MSRP
Deep Gray 300$258
Dumas Automatic$239

Full specifications

Case

5 specs
Category
—
Diver
Diameter
42mm
44mm
Thickness
13.8mm
15mm
Lug-to-Lug
52mm
48mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

1 specs
Dial Color
—
Blue

Movement

1 specs
Caliber
Seiko NH35
SII NH35A

Pricing

1 specs
MSRP
—
$239
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.

Noctua Watch Corp. PD-1
Noctua Watch Corp.micro

PD-1

Ref. noctua-watch-corp-pd-1
42mm·Automatic·300m WR
$429MSRP
—Used
Phoibos Wave Master
Phoibosmicro

Wave Master

3 variantsWave Master
42mm·Automatic·300m WR
$309MSRP
—Used
Ugly Watch Co 300mD-RedG
Ugly Watch Comicro

300mD-RedG

Ref. 300md-redg
42mm·Automatic·300m WR
$200MSRP
—Used
Spinnaker Tesei Forged Carbon
Spinnakermicro

Tesei Forged Carbon

4 watches · 10 variantsTesei
43mm·Automatic·300m WR
$550MSRP
—Used
Bahrami Watches Ω - 02
Bahrami Watchesmicro
bahrami ω

Ω - 02

Ref. bahrami-02
42mm·Automatic·200m WR
$850MSRP
—Used
Spinnaker Hass Automatic
Spinnakermicro

Hass Automatic

10 variantsHass
43mm·Automatic·300m WR
$445MSRP
—Used
Serket Watch Co Reef X Diver
Serket Watch Comicro

Reef X Diver

11 variantsRef. reef-x-diver-cotton-candy
43mm·Automatic·200m WR
$499MSRP
—Used
Zelos Great White 43
Zelosmicro

Great White 43

3 variantsGreat White
43mm·Automatic·300m WR
$599MSRP
—Used
All alternatives to the Deep Gray 300 →All alternatives to the Dumas Automatic →
Explore the full catalog

Follow this matchup

Get a note when Sheffield Deep Gray 300 vs Spinnaker Dumas Automatic 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.

Noctua Watch Corp. PD-1vsSpinnaker Dumas AutomaticSpinnaker Dumas AutomaticvsUgly Watch Co 300mD-RedGBahrami Watches Ω - 02vsSpinnaker Dumas AutomaticBahrami Watches Ω - 01vsSpinnaker Dumas AutomaticPhoibos Wave MastervsSheffield Deep Gray 300Sheffield Deep Gray 300vsSpinnaker Tesei Forged Carbon
Edit this comparisonAdd another watchExplore more 41–45mm watches