Cronos Sub DivervsSeagull 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.

Sub Diver

Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm
Diameter
44mm
45mm
Lug-to-Lug
51.9mm
50mm
lowest
Thickness
16.5mm
15.8mm
lowest
Water Resistance
2000m
highest
1000m
MSRP
$218
lowest
$893
Movement
PT5000
Seagull ST2130
Case
7 specsCrystal & Dial
1 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners praise the Cronos Sub Diver 44mm Date (L6027) for its substantial 44mm size, making it suitable for larger wrists, and its surprisingly comfortable wear despite a 17mm thickness. One owner prefers the printed dial of this specific configuration over applied indices found on other variants. The watch is noted for offering superb value and has successfully undergone a 3000m water resistance test. On balance, owners rate the Cronos Sub Diver 44mm Date (L6027) highly for its comfortable wear and strong value proposition.
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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