Side by side

Bremont ionBirdvsBremont Supermarine 500M

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

ionBird
BremontionBird
MSRP $5,800
Supermarine 500M
BremontSupermarine 500M
MSRP $4,700

At a glance

9 of 29 specs differ
Diameter
ionBird43mm
Supermarine 500M43mm
Power Reserve
ionBird40h
Supermarine 500M40h
Water Resistance
ionBird
Supermarine 500M500m
MSRP
ionBird$5,800
Supermarine 500M$4,700

Full specifications

Case

5 specs
Category
Pilot
Diver
Thickness
13mm
Lug Width
22mm
Material
Titanium
316L Stainless Steel
Water Resistance
500m

Crystal & Dial

2 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Regular length (15cm - 19cm wrist size)
Black

Movement

1 specs
Caliber
BE-92AE

Pricing

1 specs
MSRP
$5,800
$4,700

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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.

Bremont Supermarine 500M

Owners widely praise the Bremont Supermarine 500M's luxurious appearance and sapphire bezel, with some preferring its design over other luxury dive watches. Reviewers note its updated, legible dial with excellent, long-lasting Super-LumiNova lume. The hardened steel case with anti-reflective coating offers scratch resistance, and the crown placement is a favored feature. Some owners find the 43mm thickness substantial, and one reviewer questions the long-term water resistance of its three-piece case construction compared to traditional designs. Criticisms include the lack of a dive suit extension on the bracelet and a second hand that can be difficult to see in low light, with some finding the bezel markings could be more prominent. Overall, owners and reviewers consider the Bremont Supermarine 500M a handsome, rugged dive watch with a refined look that competes well with more expensive brands.

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