Omega Constellation Observatory Co Axial Master Chronometer 39 4mmvsRobot Watches APLOS

Ref. 140.53.39.21.99.001·MSRP $37,900
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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.

Constellation Observatory Co Axial Master Chronometer 39 4mm

APLOS
Diameter
39.4mm
39mm
Lug-to-Lug
47.2mm
n/a
Thickness
12.2mm
10.3mm
lowest
Water Resistance
30m
50m
highest
Power Reserve
60h
65h
highest
MSRP
$37,900
n/a
Movement
Omega 8914
La Joux-Perret G100
Case
7 specsCrystal & Dial
2 specsMovement
4 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Omega Constellation Observatory Co Axial Master Chronometer 39 4mm for its under-appreciated presence and suitability for both formal and casual wear. Reviewers highlight its reinterpretation of vintage design with a pie-pan dial, dog-leg lugs, and kite-shaped hands and indexes, noting its thin case band and 47.2mm lug-to-lug measurement. Some owners find the case thick and the lugs awkward, while others appreciate its discreet elegance and low profile. One owner wishes to switch straps but notes Omega does not sell alternatives, though the 24.2mm lug width may allow for compatibility with straps from the 41mm version. On balance, owners and reviewers rate the Omega Constellation Observatory Co Axial Master Chronometer 39 4mm highly for its elegant design and Master Chronometer certification.
Robot Watches APLOS features a slim La Joux-Perret G100 automatic movement and a 39mm case, with extensive customization options available. One owner notes irreparable pressure damage on the LCD screen. On balance, owners and reviewers find Robot Watches APLOS to be a modern dressier piece, with customization being a key draw.
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