Side by side

Bremont ionBirdvsSpinnaker Bradner GMT

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

ionBird
BremontionBird
MSRP $5,800
Bradner GMT
SpinnakerBradner GMT
MSRP $299

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
Bradner GMT42mm
Power Reserve
ionBird40h
Bradner GMT40h
Water Resistance
ionBird
Bradner GMT180m
MSRP
ionBird$5,800
Bradner GMT$299

Full specifications

Case

7 specs
Category
Pilot
GMT
Diameter
43mm
42mm
Thickness
15mm
Lug-to-Lug
50mm
Lug Width
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
180m

Crystal & Dial

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

Movement

1 specs
Caliber
Seiko NH34A

Pricing

1 specs
MSRP
$5,800
$299

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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.

Spinnaker Bradner GMT

The Spinnaker Bradner GMT is praised for its awesome lume and comfortable wearability, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find its 15mm thickness and bold colorway may not appeal to everyone, and one owner views it as more of a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its value and comfortable wearability.

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