Side by side

Bremont ionBirdvsMaystone Watch Co Prosperity GMT

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

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ionBird
BremontionBird
MSRP $5,800
Prosperity GMT
Maystone Watch CoProsperity GMT
MSRP $443
Buy from Bremont ↗
Buy used on eBay ↗
Buy from Maystone Watch Co ↗
Buy used on eBay ↗

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
Prosperity GMT38mm
Power Reserve
ionBird40h
Prosperity GMT41h
Water Resistance
ionBird—
Prosperity GMT100m
MSRP
ionBird$5,800
Prosperity GMT$443

Full specifications

Case

7 specs
Category
Pilot
—
Diameter
43mm
38mm
Thickness
—
11.9mm
Lug-to-Lug
—
46mm
Lug Width
—
20mm
Material
Titanium
Stainless Steel
Water Resistance
—
100m

Crystal & Dial

2 specs
Dial Color
Regular length (15cm - 19cm wrist size)
Red
Lume
None
string

Movement

2 specs
Caliber
—
Seiko NH34
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$5,800
—
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