Side by side

Bremont ionBirdvsSeestern S443 Column Wheel Chronograph

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

ionBird
BremontionBird
MSRP $5,800

At a glance

17 of 29 specs differ
Diameter
ionBird43mm
S443 Column Wheel Chronograph40mm
Power Reserve
ionBird40h
S443 Column Wheel Chronograph45hh
Water Resistance
ionBird
S443 Column Wheel Chronograph50m
MSRP
ionBird$5,800
S443 Column Wheel Chronograph$10

Full specifications

Case

7 specs
Category
Pilot
Chronograph
Diameter
43mm
40mm
Thickness
13mm
Lug-to-Lug
48.6mm
Lug Width
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
50m

Crystal & Dial

3 specs
Dial Color
Regular length (15cm - 19cm wrist size)
Pink
Indices
Applied
3D
Lume
None
Super BGW9

Movement

6 specs
Caliber
Seagull ST1901
Type
Automatic
Manual
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
45hh
Jewels
25
21
Complications
None
Chronograph, Column Wheel

Pricing

1 specs
MSRP
$5,800
$10

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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.

Seestern S443 Column Wheel Chronograph

Owners widely praise the Seestern S443 Column Wheel Chronograph for its affordable mechanical chronograph movement with a column wheel, derived from the Venus 175. Some owners appreciate the watch's overall aesthetic, with one noting a preference for the black-yellow variant. The ST19 movement's execution is generally well-regarded, though one owner found the chronograph minute counter could stick, a common issue that may require a watchmaker, while another noted sticky chrono pushers after patina development on the bronze case. The ST19 movement lacks an hours totalizer, and its assembly is not as refined as luxury timepieces, though comparable to entry-level automatics. One owner finds the "hand winding" script font on the dial to be a design flaw. Overall, owners rate the Seestern S443 Column Wheel Chronograph highly for its value as a column wheel chronograph, despite minor assembly and functional quirks.

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