Side by side

Bremont ionBirdvsYema Superman Dato CMM.10

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

ionBird
BremontionBird
MSRP $5,800
Superman Dato CMM.10
YemaSuperman Dato CMM.10
MSRP $1,777

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
Superman Dato CMM.1039.5mm
Power Reserve
ionBird40h
Superman Dato CMM.1040h
Water Resistance
ionBird
Superman Dato CMM.10300m
MSRP
ionBird$5,800
Superman Dato CMM.10$1,777

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
43mm
39.5mm
Thickness
11.85mm
Lug Width
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
300m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Regular length (15cm - 19cm wrist size)
39.5mm Automatic

Movement

1 specs
Caliber
Yema CMM.10

Pricing

1 specs
MSRP
$5,800
$1,777

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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.

Yema Superman Dato CMM.10

Owners widely praise the Yema Superman Dato CMM.10 for its excellent value and retro-inspired design, with particular appreciation for the tropical dial and faded bezel. The in-house CMM.10 movement is noted for its 70-hour power reserve and stated accuracy of +5/-3 seconds per day. Some owners find the strap uncomfortable on smaller wrists, and the bezel lock mechanism is considered flimsy by one reviewer. The CMM.10 movement is thicker than alternative micro-rotor movements. Overall, owners rate the Yema Superman Dato CMM.10 highly for its distinctive aesthetic and strong value proposition.

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