Brillier Mono Mechanical Blue Dial Automatic with Moon Phase and Big DatevsSeiko Essentials Automatic
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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.

Mono Mechanical Blue Dial Automatic with Moon Phase and Big Date

Essentials Automatic
Diameter
43mm
41.2mm
Lug-to-Lug
n/a
48.5mm
Thickness
14mm
11.8mm
lowest
Water Resistance
n/a
100m
Power Reserve
n/a
41h
MSRP
$795
$315
lowest
Movement
Automatic
Seiko 4R35
Case
6 specsCrystal & Dial
1 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Brillier Mono Mechanical Blue Dial Automatic Watch with Moon Phase and Big Date for its clean, symmetrical blue dial with legible indices and a navy blue pointer date. One owner found it a good value for a Swiss-made automatic moonphase around $600 on the gray market. However, one owner reported the metal bracelet and included leather strap felt cheap and of poor quality, noting the absence of adjustment tools and a manual. On balance, owners rate the Brillier Mono Mechanical Blue Dial Automatic Watch with Moon Phase and Big Date highly for its attractive dial and value proposition as a Swiss-made automatic moonphase.
Owners widely praise the Seiko Essentials Automatic for its exceptional value and reliable performance. The green sunray dial is a particular highlight for many, with one owner appreciating its beauty and the watch's overall design even after a year of ownership. Some find the 41.2mm case wears smaller than expected, making it comfortable for active wear due to its lightweight design. However, opinions on the dial color are split, with one user preferring a black dial over the greenish hue. A potential issue noted is the orange stripe on a stopwatch button, which may expand and detach in heat. On balance, owners rate the Seiko Essentials Automatic highly for its value and reliable, attractive design.
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