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.

Cronos Sub Diver at true scale

Sub Diver

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

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 specs
Diameter
44mm
45mm
Thickness
16.5mm
15.8mm
Lug-to-Lug
51.9mm
50mm
Lug Width
21mm
22mm
Material
316L Stainless Steel
Stainless Steel
Finish
316L stainless steel
n/a
Water Resistance
2000m
1000m

Crystal & Dial

1 specs
Crystal
n/a
Sapphire

Movement

3 specs
Caliber
PT5000
Seagull ST2130
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$218
$893
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Reviews

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

Cronos Sub Diver

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.

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.

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