Seiko Diamond CollectionvsLongines La Grande Classique de Longines

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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.

Diamond Collection

La Grande Classique de Longines
Diameter
32mm
24mm
Lug-to-Lug
39mm
29.6mm
lowest
Thickness
8.2mm
4.3mm
lowest
Water Resistance
100m
highest
30m
MSRP
$525
lowest
$1,650
Movement
Seiko 6N32
Longines L209.2
Case
5 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Seiko Diamond Collection for its stunning beauty, particularly highlighting the 14 real diamonds and the attractive two-tone color scheme. The mother-of-pearl dial, sapphire crystal, and lightweight build are frequently appreciated features. Some owners note that the dial's detail is best captured in direct sunlight, and the green-dialed version has been a particular hit. The watch is considered to offer excellent fit and finish for its price, especially when found on sale. Overall, owners rate the Seiko Diamond Collection highly for its dazzling diamond accents and attractive aesthetic.
Owners widely praise the Longines LA GRANDE CLASSIQUE DE LONGINES for its extreme thinness, elegant and timeless design, and comfortable, low-profile wearability. The quartz version is recommended for its reliability and "grab and go" nature, with the 24mm case size noted as fitting perfectly for women. Pre-owned prices for the Longines LA GRANDE CLASSIQUE DE LONGINES can range from approximately $300 to $600 USD. One owner reported a quartz battery dying within months of replacement, leading to speculation about movement or battery size issues within the thin case. On balance, owners rate the Longines LA GRANDE CLASSIQUE DE LONGINES highly for its sleek, dressy aesthetic and comfortable, discreet wearability.
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