Maurice de Mauriac Chrono Modern Moon Steel BlackvsLongines Master Collection Chrono Moonphase


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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.

Chrono Modern Moon Steel Black

Master Collection Chrono Moonphase
Diameter
42mm
40mm
Lug-to-Lug
50mm
49.5mm
lowest
Thickness
n/a
14.2mm
Water Resistance
50m
highest
30m
Power Reserve
n/a
66h
MSRP
$5,500
$4,400
lowest
Movement
Valjoux 7751
L687.5
Case
5 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Maurice de Mauriac Chrono Modern Moon Steel Black's legible aviator dial with ample SuperLumiNova and its eye-catching complication. Some find the watch too tactical, while others appreciate its polished steel bezel and brushed case for versatile wear. One reviewer notes the red-tinted sapphire crystal adds a "wow factor" but slightly hinders legibility and lume charging, and prefers the 42mm case size despite it wearing large. The 50-meter water resistance is considered lower than expected given the screw-down elements. Overall, owners and reviewers find the Maurice de Mauriac Chrono Modern Moon Steel Black to be a well-made and visually appealing watch, with its standout complication and legible dial being key reasons for its positive reception.
Owners widely praise the Longines MASTER COLLECTION CHRONO MOONPHASE for its value and numerous complications, with many finding it gorgeous and a personal win. The dial is described as mesmerizing by some, though others find it busy. Concerns are raised about its 30m water resistance, limiting its wearability, and one owner notes the blue dial is less vibrant than pictured. The watch is also described as a "thick boi" by one owner, and some find the chronograph hour pointer obscuring the moonphase and numbers being cut off to be annoying. Overall, owners rate the Longines MASTER COLLECTION CHRONO MOONPHASE highly for its impressive complications and perceived high horology at its price point.
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