Side by side

Bremont ionBirdvsChristopher Ward C1 Moonphase 37

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

ionBird
BremontionBird
MSRP $5,800
C1 Moonphase 37
Christopher WardC1 Moonphase 37
MSRP $3,050

At a glance

16 of 29 specs differ
Diameter
ionBird43mm
C1 Moonphase 3744.07mm
Power Reserve
ionBird40h
C1 Moonphase 3738h
Water Resistance
ionBird
C1 Moonphase 3730m
MSRP
ionBird$5,800
C1 Moonphase 37$3,050

Full specifications

Case

8 specs
Category
Pilot
Dress
Diameter
43mm
44.07mm
Thickness
13.1mm
Lug-to-Lug
44.07mm
Lug Width
20mm
Material
Titanium
Stainless Steel
Finish
Brushed and polished
Brushed + Polished
Water Resistance
30m

Crystal & Dial

2 specs
Dial Color
Regular length (15cm - 19cm wrist size)
Blue
Lume
None
SLN X1 WL C1

Movement

5 specs
Caliber
SW220
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
38h
Jewels
25
26
Complications
None
Moonphase

Pricing

1 specs
MSRP
$5,800
$3,050

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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.

Christopher Ward C1 Moonphase 37

Owners widely praise the Christopher Ward C1 Moonphase 37 for its aventurine dial and moon display, with one user awarding it a perfect score for its celestial theme. However, the lack of hour markers and lume-less hands make time-telling difficult, and hands can disappear against the dial. The COSC-certified movement averages +2.3 seconds per day, and the bracelet clasp is noted for comfort. The moonphase complication itself is reported by one owner to be inaccurate despite manufacturer attempts to correct it, though other users view such complications as primarily decorative. The 38-hour power reserve is considered short. Overall, owners rate the Christopher Ward C1 Moonphase 37 highly for its striking aventurine dial and moon focus, despite challenges with legibility and the practical accuracy of its moonphase complication.

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