Side by side

Bremont ionBirdvsGrand Seiko SBGM221

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

ionBird
BremontionBird
MSRP $5,800
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

12 of 29 specs differ
Diameter
ionBird43mm
SBGM22139.5mm
Power Reserve
ionBird40h
SBGM22172h
Water Resistance
ionBird
SBGM22130m
MSRP
ionBird$5,800
SBGM221$5,400

Full specifications

Case

7 specs
Category
Pilot
GMT
Diameter
43mm
39.5mm
Thickness
13.7mm
Lug-to-Lug
46.9mm
Lug Width
19mm
Material
Titanium
Stainless Steel
Water Resistance
30m

Crystal & Dial

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

Movement

2 specs
Caliber
9S66
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$5,800
$5,400

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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 SBGM221

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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