Side by side

Bremont ionBirdvsOrient M-Force AC0N

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

ionBird
BremontionBird
MSRP $5,800
M-Force AC0N
OrientM-Force AC0N
MSRP $555

At a glance

16 of 29 specs differ
Diameter
ionBird43mm
M-Force AC0N45mm
Power Reserve
ionBird40h
M-Force AC0N40h
Water Resistance
ionBird
M-Force AC0N200m
MSRP
ionBird$5,800
M-Force AC0N$555

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
43mm
45mm
Thickness
12.8mm
Lug-to-Lug
52mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Water Resistance
200m

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Inner
Underside
Dial Color
Regular length (15cm - 19cm wrist size)
Green
Indices
Applied

Movement

4 specs
Caliber
F6727
Beat Rate
28,800 vph
21,600 vph
Jewels
25
22
Complications
None
Date

Pricing

1 specs
MSRP
$5,800
$555

Follow this matchup

Get a note when Bremont ionBird vs Orient M-Force AC0N gets more votes, a community discussion, or a price drop. No account needed.

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.

Orient M-Force AC0N

Owners widely praise the Orient M-Force AC0N for its rugged, tank-like appearance and robust, well-built construction, with many citing the reliability of Japanese automatic movements as a key draw. Reviewers and owners consistently flag excellent lume and a superior diver bezel, though one owner notes poor low-light legibility due to weak lume. Accuracy figures vary, with one owner reporting stable +12 seconds/day timekeeping while another found it kept near-perfect time when fully wound; a wobbly crown was also noted by one owner. Overall, owners rate the Orient M-Force AC0N highly for its toughness and value, with its striking design and durable build being the primary reasons for satisfaction.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.