Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mmvsTAG Heuer Formula 1 Chronograph X Senna

Ref. 304.93.44.52.03.001·MSRP $15,700

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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.

Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm

Formula 1 Chronograph X Senna
Diameter
44.3mm
44mm
Lug-to-Lug
50mm
n/a
Thickness
16.9mm
14.5mm
lowest
Water Resistance
100m
200m
highest
Power Reserve
60h
highest
48h
MSRP
$15,700
$5,900
lowest
Movement
Omega 9904
TAG Heuer Calibre 16
Case
7 specsCrystal & Dial
3 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm is widely praised for its photorealistic moonphase complication, featuring a NASA-sourced image and a 10-year accurate display, along with buttery chronograph buttons and excellent finishing. Reviewers and owners consistently highlight the impressive Master Chronometer certification, antimagnetic properties, and the beauty of the sunburst dial and ceramic bezel with Liquidmetal. However, multiple sources flag its considerable thickness, ranging from 16.85mm to 17mm, which makes it challenging to wear under dress shirt cuffs and leads some to find it too large or bold for smaller wrists. On balance, owners and reviewers rate the Omega Speedmaster Moonphase Co Axial Master Chronometer Moonphase Chronograph 44 25mm highly for its stunning moonphase complication and top-tier finishing, despite its substantial dimensions.
Owners widely praise the TAG Heuer Formula 1 Chronograph X Senna for its striking, hype-worthy design inspired by Senna's helmet livery, featuring a DLC-coated titanium case and yellow accents. Reviewers note the Calibre 16 automatic movement's robustness and lighter pusher action. While some owners find the 44mm case size manageable due to a short lug-to-lug, others consider it too large or heavy, particularly with the bracelet. Opinions on value are mixed, with one owner finding it overpriced for an entry-level Formula 1 model, while another considers it well-made for the price. The watch offers 200m water resistance and a 42-hour power reserve. Overall, owners rate the TAG Heuer Formula 1 Chronograph X Senna highly for its bold design and solid build at its price point.
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