Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mmvsTudor Black Bay Chrono S&G

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm at true scale

Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

Tudor Black Bay Chrono S&G at true scale

Black Bay Chrono S&G

Diameter

44.3mm

41mm

Lug-to-Lug

50mm

n/a

Thickness

16.9mm

14.4mm

lowest

Water Resistance

100m

200m

highest

Power Reserve

60h

70h

highest

MSRP

$42,400

n/a

Movement

Omega 9904

Tudor MT5813

Case

7 specs
Diameter
44.25mm
41mm
Thickness
16.85mm
14.4mm
Lug-to-Lug
50mm
n/a
Lug Width
21mm
22mm
Material
18kt Sedna Gold
steel
Finish
Steel
n/a
Water Resistance
100m
200m

Crystal & Dial

2 specs
Crystal Shape
Domed
n/a
Dial Color
Black
n/a

Movement

5 specs
Caliber
Omega 9904
Tudor MT5813
Power Reserve
60h
70h
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Chronograph, Moonphase
None

Pricing

1 specs
MSRP
$42,400
n/a
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

The Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm is widely praised for its detailed and photorealistic moonphase complication, featuring a boot print Easter egg, and its exceptional finishing, including a ceramic bezel and sun-brushed dial. Owners and reviewers consistently highlight the beauty of the complication and the overall build quality. However, the watch's 44.25mm case size and considerable thickness (around 16.85mm to 17mm) are frequently noted as making it wear large and potentially challenging to fit under dress cuffs, with some suggesting it feels "chunky" or like a "beast." One reviewer found the crown guards sharp when winding and the crown difficult to pull out. On balance, owners and reviewers appreciate the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm for its stunning moonphase detail and high-end finishing, despite its substantial size.

Tudor Black Bay Chrono S&G

The Tudor Black Bay Chrono S&G is widely praised for its cohesive two-tone design, which injects personality and offers an approachable entry into two-tone trends with understated satin finishes. Owners and reviewers highlight its robust build quality, comfortable bracelet with an amazing clasp, and solid power reserve. The MT5813 movement is noted for smooth chronograph operation. Some find the watch gaudy and retro, with a substantial feel, and legibility can be challenging due to white hands blending with silvery chronograph elements. The 45-minute register is considered less practical than a 60-minute one, and the sub-dials are seen as slightly too small. One owner notes that the gold weight on the fabric strap creates a slight imbalance. Overall, owners and reviewers rate the Tudor Black Bay Chrono S&G highly for its striking two-tone aesthetic and value at the price point.

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