Side by side

Bremont ionBirdvsGrand Seiko STGK003

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

ionBird
BremontionBird
MSRP $5,800
STGK003
Grand SeikoSTGK003
MSRP $31,200

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
STGK00328.7mm
Power Reserve
ionBird40h
STGK00350h
Water Resistance
ionBird—
STGK003100m
MSRP
ionBird$5,800
STGK003$31,200

Full specifications

Case

7 specs
Category
Pilot
Dress
Diameter
43mm
28.7mm
Thickness
—
10.9mm
Lug-to-Lug
—
35.1mm
Lug Width
—
14mm
Material
Titanium
Gold
Water Resistance
—
100m

Crystal & Dial

2 specs
AR Coating
Inner
Yes
Dial Color
Regular length (15cm - 19cm wrist size)
Black

Movement

2 specs
Caliber
—
9S27
Power Reserve
40h
50h

Pricing

1 specs
MSRP
$5,800
$31,200

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