Seagull Extraordinary Series Moon Phase Dress Watch 40mmvsSeestern MoonPhase Master Automatic S437-2

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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.

Extraordinary Series Moon Phase Dress Watch 40mm

MoonPhase Master Automatic S437-2
Diameter
40mm
41mm
Thickness
12mm
lowest
13mm
Water Resistance
50m
50m
MSRP
$609
$224
lowest
Movement
ST1818
Seagull ST2528
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Seagull Extraordinary Series Moon Phase Dress Watch 40mm for its classy, elegant design and excellent value, with many calling it a potential favorite dress watch. The 12.7mm thickness is considered well-proportioned to the 40mm case. The moonphase complication is a highlight, though owners note it requires manual adjustment by setting the date and moon position one day prior and is considered a pain to set. Some find the dial text crowded at the 6 o'clock position. Overall, owners rate the Seagull Extraordinary Series Moon Phase Dress Watch 40mm highly for its beautiful dial and true moonphase complication at its price point.
Owners widely praise the Seestern MoonPhase Master Automatic S437-2 for its exceptionally bright BGW9 lume, described by one owner as glowing "like a lightsaber," and its legible sub-dial. The watch is noted for its attractive blue and gold dial, and the moon phase complication is appreciated as a visual feature. One owner reports an accuracy of +5 seconds per day with 285 amplitude, which is considered acceptable for the price and Seagull ST2528 movement. The Seestern S437-2 shares a design language with some luxury brands, with its moon phase models drawing comparisons. Overall, owners rate the Seestern MoonPhase Master Automatic S437-2 highly for its impressive lume and build quality at its price point.
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