Side by side

Bremont ionBirdvsGrand Seiko SBGY011

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

ionBird
BremontionBird
MSRP $5,800
SBGY011
Grand SeikoSBGY011
MSRP $8,800

At a glance

13 of 29 specs differ
Diameter
ionBird43mm
SBGY01140mm
Power Reserve
ionBird40h
SBGY01172h
Water Resistance
ionBird
SBGY011100m
MSRP
ionBird$5,800
SBGY011$8,800

Full specifications

Case

7 specs
Category
Pilot
Dress
Diameter
43mm
40mm
Thickness
10.5mm
Lug-to-Lug
46.2mm
Lug Width
19mm
Material
Titanium
Stainless Steel
Water Resistance
100m

Crystal & Dial

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

Movement

3 specs
Caliber
9R31
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$5,800
$8,800

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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.

Grand Seiko SBGY011

Grand Seiko SBGY011 owners praise its stunning, subtly textured white dial, with one owner describing its glide as very smooth and the dial itself as stunning in person. The Spring Drive movement is a key appeal, noted for its accuracy of +/- 1 second per day and a 72-hour power reserve. The 40mm stainless steel 44GS case is also a feature. One reviewer expressed a preference for a bracelet over the included crocodile strap. Overall, owners and reviewers highlight the Grand Seiko SBGY011's exceptional dial aesthetics and Spring Drive accuracy as its primary strengths.

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