Side by side

Bremont ionBirdvsYema Navygraf Pearl CMM.20

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

ionBird
BremontionBird
MSRP $5,800
Navygraf Pearl CMM.20
YemaNavygraf Pearl CMM.20
MSRP $1,862

At a glance

11 of 29 specs differ
Diameter
ionBird43mm
Navygraf Pearl CMM.2039mm
Power Reserve
ionBird40h
Navygraf Pearl CMM.2040h
Water Resistance
ionBird
Navygraf Pearl CMM.20100m
MSRP
ionBird$5,800
Navygraf Pearl CMM.20$1,862

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
43mm
39mm
Thickness
9.75mm
Lug-to-Lug
46mm
Lug Width
19mm
Material
Titanium
316L Stainless Steel
Water Resistance
100m

Crystal & Dial

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

Movement

1 specs
Caliber
Yema CMM.20

Pricing

1 specs
MSRP
$5,800
$1,862

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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 Navygraf Pearl CMM.20

The Yema Navygraf Pearl CMM.20 is praised for its elegant and slim case design, measuring between 9.5mm and 9.75mm thick, and its unique mother-of-pearl dial and bezel. The watch features functional dive watch elements like 200-meter water resistance and is powered by the in-house CMM.20 micro-rotor movement, which offers a 70-hour power reserve and is adjusted to -3/+7 seconds a day. Overall, reviewers highlight the Yema Navygraf Pearl CMM.20's sophisticated aesthetic and slim profile as its primary strengths.

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