Edox Neptunian Grande Réserve Date AutomaticvsSeiko Prospex Sea

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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.

Neptunian Grande Réserve Date Automatic

Prospex Sea
Diameter
42mm
42mm
Lug-to-Lug
n/a
48.6mm
Thickness
12.3mm
lowest
13.3mm
Water Resistance
300m
300m
Power Reserve
n/a
72h
MSRP
$1,990
n/a
Movement
Caliber 808 (La Joux-Perret G100)
Seiko 6R54
Case
2 specsCrystal & Dial
2 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Edox Neptunian Grande Réserve Date Automatic for its robust build and refined design, with reviewers highlighting its 42mm case as versatile and wearable, aided by a 12.3mm thickness. The Caliber 808 automatic movement, based on the La Joux-Perret G100, provides a 68-hour power reserve and is noted for its accuracy, with one source reporting +/-12 seconds per day. Legibility is enhanced by Super-LumiNova X1. The watch is priced at EUR 1,890 and features a ceramic bezel and sapphire crystal. Some owners find the 42mm case size large, and one reviewer felt the emphasis on the 68-hour power reserve was slightly overstated compared to competitors. Overall, owners and reviewers rate the Edox Neptunian Grande Réserve Date Automatic highly for its refined dive watch aesthetics and practical wearability at its price point.
The Seiko Prospex Sea is widely recognized for its excellent value and solid build quality, with many owners appreciating its classic dive watch design and legible dial. Reviewers consistently praise its lume, with one owner noting it as excellent. The watch's finishing is also a frequent highlight, described as impressive and well-executed for its price point. Some owners find the 42mm case size wears well, even on smaller wrists, while others describe it as substantial and potentially uncomfortable for smaller wrists. The movement is noted as a 6R54 automatic. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its robust construction and classic dive watch aesthetics at a fair price.
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