Side by side

Monta AtlasvsSpinnaker Dumas GMT

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

Atlas
MontaAtlas
MSRP $2,150
Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

9 of 29 specs differ
Diameter
Atlas38.5mm
Dumas GMT44mm
Power Reserve
Atlas40h
Dumas GMT40h
Water Resistance
Atlas152m
Dumas GMT300m
MSRP
Atlas$2,150
Dumas GMT$399

Full specifications

Case

6 specs
Diameter
38.5mm
44mm
Thickness
15mm
Lug-to-Lug
48mm
Lug Width
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
152m
300m

Crystal & Dial

1 specs
Dial Color
Silver
Blue

Movement

1 specs
Caliber
Monta M-23
Seiko NH34A

Pricing

1 specs
MSRP
$2,150
$399

Follow this matchup

Get a note when Monta Atlas vs Spinnaker Dumas GMT gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Monta Atlas

The Monta Atlas is widely praised for its exceptional wearability, with its comfortable 38.5mm case size and buttery bracelet frequently highlighted. Owners and reviewers alike commend its fit and finish, noting a mix of brushed, polished, and blasted surfaces. However, the rehaut on the opaline silver dial is considered nearly illegible for the 24-hour GMT scale, leading some to suggest other dial colors are more practical for GMT functionality. One owner also flagged the crown as less sturdy than anticipated and noted the AR coating attracts fingerprints. Overall, owners and reviewers rate the Monta Atlas highly for its comfortable dimensions and appealing finishing.

From video reviewers

The Monta Opalin Silver's dial is a notable strength, particularly its subtle gradient effect that adds depth to the watch without being too flashy. The watch offers a notable value proposition due to its movement, typically found in more expensive timepieces. The bracelet can be prone to rattle, which might be a trade-off for some buyers.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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.

Adjacent matchups

People also compared

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