Side by side

Spinnaker Dumas GMTvsSwatch Am51

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

Add a watch
Dumas GMT
SpinnakerDumas GMT
MSRP $399
See the full Dumas GMT
Am51
SwatchAm51
MSRP $170
See the full Am51
Buy from Spinnaker ↗
Buy used on eBay ↗
Buy from Swatch ↗
Buy used on eBay ↗

At a glance

14 of 29 specs differ
Diameter
Dumas GMT44mm
Am5142mm
Power Reserve
Dumas GMT—
Am51—
Water Resistance
Dumas GMT300m
Am5130m
MSRP
Dumas GMT$399
Am51$170

Full specifications

Case

8 specs
Category
GMT
Mechanical
Diameter
44mm
42mm
Thickness
15mm
13.9mm
Lug-to-Lug
48mm
50.6mm
Lug Width
22mm
—
Material
316L Stainless Steel
Bio-sourced Material
Finish
—
Bio-sourced material
Water Resistance
300m
30m

Crystal & Dial

2 specs
Crystal
Sapphire
—
Dial Color
Blue
Black

Movement

3 specs
Caliber
Seiko NH34
—
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$399
$170
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.

Spinnaker Fleuss GMT
Spinnakermicro

Fleuss GMT

6 watches · 49 variantsFleuss
43mm·Automatic·150m WR
$299MSRP
—Used
Swatch Waktu51
Swatch

Waktu51

Ref. SO30N400
42mm·Automatic
$170MSRP
—Used
Viqueria Trecento – NeroAzzurro
Viqueriamicro

Trecento – NeroAzzurro

7 variantsSeries
43.5mm·Automatic·300m WR
$448MSRP
—Used
Orient Esteem II
Orient

Esteem II

41mm·Automatic
$285MSRP
—Used
Islander Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
Islandermicro
Under $50

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

9 watches · 9 variantsUnder $50
40mm·Automatic·200m WR
$379MSRP
—Used
Swatch Blurang
Swatch

Blurang

Ref. YIS430
42mm·Automatic
$260MSRP
—Used
Spinnaker Tesei Mille Metri GMT
Spinnakermicro

Tesei Mille Metri GMT

4 watches · 10 variantsTesei
44mm·Automatic·1000m WR
$559MSRP
—Used
Orient Helios
Orient

Helios

4 variantsHelios
40.5mm·Automatic
$335MSRP
—Used
All alternatives to the Dumas GMT →All alternatives to the Am51 →
Explore the full catalog

Follow this matchup

Get a note when Spinnaker Dumas GMT vs Swatch Am51 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.

Swatch Am51vsViqueria Trecento – NeroAzzurroSpinnaker Fleuss GMTvsSwatch Am51Spinnaker Bradner GMTvsSwatch Am51Draken Tugela GMT Super BluevsSwatch Am51Azimuth Wood DragonvsSpinnaker Dumas GMTRalf Tech ACADÉMIE AUTOMATICvsSpinnaker Dumas GMT
Edit this comparisonAdd another watchExplore more 41–45mm watches