Blancpain Fifty Fathoms AutomatiquevsSeagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm

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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.

Fifty Fathoms Automatique

Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm
Diameter
45mm
45mm
Lug-to-Lug
n/a
50mm
Thickness
15.4mm
lowest
15.8mm
Water Resistance
300m
1000m
highest
Power Reserve
120h
n/a
MSRP
$20,700
$875
lowest
Movement
1315
Seagull ST2130
Case
6 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners and reviewers widely praise the Blancpain Fifty Fathoms Automatique for its timeless design, excellent legibility, and high-quality finishing, with the sapphire crystal bezel and generously applied luminous material providing excellent brightness. The movement is noted for its haute horlogerie decorations and a 100-hour power reserve. Some owners find the 45mm case size offers comfortable wearability, while others note that smaller variants are surprisingly stealthy and offer daily wearability. The 45mm Automatique sells significantly below its retail price, with unworn examples listed around $12,500. A reviewer found the engraved name on the case side unnecessary, and some note the uncommon strap width limits third-party options, with a lack of quick-release spring bars considered old-school. Overall, owners and reviewers rate the Blancpain Fifty Fathoms Automatique highly for its beautiful design and excellent finishing at the price.
The Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving Watch 45mm is praised for its fit, finish, and general quality, with one owner comparing it favorably to a Movado Series 800. Reviewers note a well-executed design, a metallic wave pattern on the dial with a blue-to-black gradient, and a domed sapphire bezel as desirable elements. One owner reports the ST2130 movement runs at +3 seconds per day. The watch features a bead-blasted 316L stainless steel case, a 5mm sapphire crystal, and a helium escape valve. Some owners find the 45mm case large but fitting, while others note a 20mm thickness. A reviewer flags excessive text on the dial and case, uneven luminous material application, and a rotating bezel with a slight rattle. One owner notes bezel fading over 5 years of commercial diving. The community is split on the bezel, with some calling the 60-click unidirectional bezel a minor quirk and another mentioning a 12-hour bezel.
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