Side by side

Monta AtlasvsTudor Black Bay One 31 S&G

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

Atlas
MontaAtlas
MSRP $2,150
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

12 of 29 specs differ
Diameter
Atlas38.5mm
Black Bay One 31 S&G31mm
Power Reserve
Atlas40h
Black Bay One 31 S&G50h
Water Resistance
Atlas152m
Black Bay One 31 S&G100m
MSRP
Atlas$2,150
Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs
Category
GMT
Diameter
38.5mm
31mm
Thickness
9.5mm
Lug-to-Lug
47mm
46mm
Lug Width
17mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
152m
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

1 specs
Dial Color
Silver
Black

Movement

2 specs
Caliber
Monta M-23
MT5201
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$2,150
$6,850

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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.

Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G is praised for its quiet luxury, combining brushed steel and warm gold accents for understated charm. Owners appreciate the brushed gold for a casual two-tone look and the champagne dial's surprising legibility. Some find the case sides too thick, and one user expressed a desire for a smaller S&G variant. The watch features the MT5612 movement with a 70-hour power reserve and a date function, within a 200-meter water-resistant case. Overall, owners and reviewers highlight the Tudor Black Bay One 31 S&G's balanced two-tone aesthetic as its primary appeal.

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