AV86 1988 MoonphasevsGrand Seiko SBGA375
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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.
1988 Moonphase
SBGA375
Diameter
38.8mm
40mm
Lug-to-Lug
n/a
46.2mm
Thickness
11.8mm
lowest
12.5mm
Water Resistance
30m
100m
highest
Power Reserve
n/a
72h
MSRP
n/a
$5,600
Movement
Frederique Constant FC-702
Grand Seiko 9R65
Case
5 specsCrystal & Dial
2 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The AV86 1988 Moonphase features a unique balance wheel detail representing the sun, though this is not visible when worn. Owners suggest that AVI-8 is a fashion watch brand, with some indicating that better quality alternatives exist at this price point, while acknowledging the appeal of the designs. Overall, owners find the AV86 1988 Moonphase appealing for its design, despite some suggesting better value elsewhere.
Grand Seiko SBGA375 owners praise its dial, Spring Drive movement, design, and finishing, with one owner mesmerized by the totality of the piece. Reviewers note the dial's legibility, even in low light, and the polished bevels on the hour markers that catch light well. One owner scuffed the bezel within a week of ownership. Some find other Grand Seiko models more appealing, and one user questioned if a lug was missing. Overall, owners rate the Grand Seiko SBGA375 highly for its subtle design and the engineering of its Spring Drive movement.
The Spring Drive movement's smooth sweep is a key strength. The bracelet's taper and clasp were cited as areas for improvement.
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