Omega Constellation Observatory Co Axial Master Chronometer 39 4mmvsTissot Le Locle

Ref. 140.13.39.21.02.001·MSRP $10,900
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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

Le Locle
Diameter
39.4mm
39.3mm
Lug-to-Lug
47.2mm
n/a
Thickness
12.2mm
9.8mm
lowest
Water Resistance
30m
30m
Power Reserve
60h
80h
highest
MSRP
$10,900
$795
lowest
Movement
Omega 8914
Tissot Powermatic 80
Case
5 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 discreet, light, and minimalistic design, making it suitable for both suits and casual wear. Reviewers highlight its thin case band, achieved through dual sapphire crystals, and a 47.2mm lug-to-lug measurement, reinterpreting vintage design with a pie-pan dial, kite-shaped hands, and dog-leg lugs. Some owners find the steel bracelet's edges sharp, and one owner wishes for strap alternatives as Omega does not offer them, noting the notched strap may not fit standard aftermarket options. On balance, owners and reviewers rate the Omega Constellation Observatory Co Axial Master Chronometer 39 4mm highly for its refined aesthetics and comfortable wearability.
Owners widely praise the Tissot Le Locle for its classic elegance, guilloché dial, and 39.3mm case size, which reviewers note fits well under cuffs due to its sub-10mm thickness. The watch is considered a classy and versatile dress watch, with one owner settling on a gold variant with a white dial and crocodile strap. Some owners, however, flag the 30m water resistance as a drawback, and the bracelet style is not a universal favorite. Overall, owners rate the Tissot Le Locle highly for its premium appearance and elegant design at its price point.
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