Side by side

Bremont ionBirdvsZero West M1 Series

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
See the full ionBird
M1 Series
Zero WestM1 Series
MSRP $3,600
See the full M1 Series
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Buy from Zero West ↗
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At a glance

11 of 29 specs differ
Diameter
ionBird43mm
M1 Series41mm
Power Reserve
ionBird40h
M1 Series41h
Water Resistance
ionBird—
M1 Series100m
MSRP
ionBird$5,800
M1 Series$3,600

Full specifications

Case

7 specs
Category
Pilot
—
Diameter
43mm
41mm
Thickness
—
13.5mm
Lug-to-Lug
—
46mm
Lug Width
—
22mm
Material
Titanium
Stainless Steel
Water Resistance
—
100m

Crystal & Dial

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

Movement

2 specs
Caliber
—
Sellita SW200-1
Power Reserve
40h
41h

Pricing

1 specs
MSRP
$5,800
$3,600
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