MMI Watches DUMBO 500M DIVE WATCH 316L NH35 "LEATHER PACKAGE" DB2NHSvsSeagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving Watch 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.

DUMBO 500M DIVE WATCH 316L NH35 "LEATHER PACKAGE" DB2NHS

Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving Watch 45mm
Diameter
46mm
45mm
Lug-to-Lug
n/a
50mm
Thickness
14.6mm
lowest
15.8mm
Water Resistance
500m
1000m
highest
MSRP
$390
lowest
$1,049
Movement
Seiko NH35
Seagull ST2130
Case
5 specsCrystal & Dial
1 specsMovement
1 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the MMI Watches DUMBO 500M DIVE WATCH 316L NH35 "LEATHER PACKAGE" DB2NHS for its legibility, tactile bead-blasted PVD-coated 316L case, and comfortable, well-finished feel. One owner notes the Seiko NH35 movement runs reliably at -2s/day after customization. Overall, owners rate the MMI Watches DUMBO 500M DIVE WATCH 316L NH35 "LEATHER PACKAGE" DB2NHS highly for its novelty dial and value at around £100.
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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