Side by side

Bremont ionBirdvsStudio Underd0g Full Moon

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

ionBird
BremontionBird
MSRP $5,800
Full Moon
Studio Underd0gFull Moon
MSRP $800

At a glance

6 of 29 specs differ
Diameter
ionBird43mm
Full Moon39.5mm
Power Reserve
ionBird40h
Full Moon40h
Water Resistance
ionBird
Full Moon
MSRP
ionBird$5,800
Full Moon$800

Full specifications

Case

3 specs
Category
Pilot
Casual
Diameter
43mm
39.5mm
Material
Titanium
Stainless Steel

Crystal & Dial

1 specs
Dial Color
Regular length (15cm - 19cm wrist size)
Standard

Movement

1 specs
Type
Automatic
Manual

Pricing

1 specs
MSRP
$5,800
$800

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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.

Bremont ionBird

Owners report the Bremont ionBird is overpriced and features a printed dial with a poorly placed date window at 4:30, which some find visually disruptive. However, some owners suggest its case finishing is superior to competitors. The 43mm titanium Bremont ionBird GMT is powered by a COSC-certified BE-93-2AV automatic movement and retails for $5,795. On balance, owners and reviewers find the Bremont ionBird's date window placement and price point to be significant drawbacks.

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.

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