Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mmvsSeiko Purchase Prospex

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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.

Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm at true scale

Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm

Seiko Purchase Prospex at true scale

Purchase Prospex

Diameter

45mm

45mm

Lug-to-Lug

50mm

47.7mm

lowest

Thickness

15.8mm

13.2mm

lowest

Water Resistance

1000m

highest

200m

Power Reserve

n/a

41h

MSRP

$875

$755

lowest

Movement

Seagull ST2130

Seiko 4R36

Case

4 specs
Thickness
15.8mm
13.2mm
Lug-to-Lug
50mm
47.7mm
Lug Width
22mm
n/a
Water Resistance
1000m
200m

Movement

2 specs
Caliber
Seagull ST2130
Seiko 4R36
Power Reserve
0h
41h

Pricing

1 specs
MSRP
$875
$755
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seagull Ocean Series Ultra 1000m Waterproof Helium Valve Design Integrated Rotating Bezel Diving 45mm

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.

Seiko Purchase Prospex

Owners widely praise the beauty of the Seiko Prospex HBB002K1. Some owners question the value proposition at its $750 limited-edition price point, citing the use of a budget movement when Seiko offers newer 6R series calibers. On balance, owners find the Seiko Prospex HBB002K1 beautiful, though some express reservations about its value given the movement choice.

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