Side by side

Studio Underd0g Full MoonvsTudor Black Bay One 31 S&G

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

Full Moon
Studio Underd0gFull Moon
MSRP $800
Black Bay One 31 S&G
TudorBlack Bay One 31 S&G
MSRP $6,850

At a glance

13 of 29 specs differ
Diameter
Full Moon39.5mm
Black Bay One 31 S&G31mm
Power Reserve
Full Moon40h
Black Bay One 31 S&G50h
Water Resistance
Full Moon
Black Bay One 31 S&G100m
MSRP
Full Moon$800
Black Bay One 31 S&G$6,850

Full specifications

Case

8 specs
Category
Casual
Diameter
39.5mm
31mm
Thickness
9.5mm
Lug-to-Lug
46mm
Lug Width
17mm
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
Caseback
Solid
Solid screw-down

Crystal & Dial

1 specs
Dial Color
Standard
Black

Movement

3 specs
Caliber
MT5201
Type
Manual
Automatic
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$800
$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.

Studio Underd0g Full Moon

Owners widely praise the Studio Underd0g Full Moon's harmonious creamy dial and its 37mm case, which fits flawlessly. The innovative sapphire disc with numerals is a highlight, though two visible screws holding it are noted as a minor aesthetic drawback. Some owners find the watch overpriced, while others see value in the upgraded Sellita movement under $1k. Lume is surprisingly good, and the included NATO strap is preferred by some over the leather. Accuracy ranges from +1/+2 seconds per day to about -6 seconds per day. On balance, owners rate the Studio Underd0g Full Moon highly for its versatile dial and well-fitting case at the price point.

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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