Side by side

Oris Great Barrier Reef Limited Edition IVvsSeiko Prospex Sea PADI Special Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

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

Oris Great Barrier Reef Limited Edition IV

The Oris Great Barrier Reef Limited Edition IV's 43.55mm case is surprisingly wearable on a 7-inch wrist due to its new design. Owners report the Oris Great Barrier Reef III, a 45mm watch, is massive and nearly 20mm thick. Overall, owners find the Oris Great Barrier Reef Limited Edition IV wearable despite its size, citing its new design as a key factor.

From video reviewers

The striking turquoise-to-navy gradient dial is a notable feature. The 43.5mm stainless steel case is noted for its ergonomic fit.

Seiko Prospex Sea PADI Special Edition

The Seiko Prospex Sea PADI Special Edition is widely praised for its attractive, jewel-toned teal or emerald green dials with wave patterns and vibrant PADI color schemes. Owners and reviewers note its solid build quality, refined case, and good value, with some highlighting the laser-engraved bezel numerals and LumiBrite for legibility. The 6R55 movement offers a 72-hour power reserve, while the 6R15 provides 50 hours. Accuracy figures vary, with the 6R55 rated +25/-15 seconds per day and the 6R15 around +/- 15-25 seconds per day. Some find the lug-to-lug measurement, around 49.5mm, potentially long for smaller wrists, and one owner noted a unique case design made the watch wear top-heavy. Another owner found the finishing and bracelet design basic. Overall, owners and reviewers appreciate the Seiko Prospex Sea PADI Special Edition for its striking dial aesthetics and solid dive watch construction at its price point.

At a glance

18 of 29 specs differ
Diameter
Great Barrier Reef Limited Edition IV43.5mm
Prospex Sea PADI Special Edition43.8mm
Power Reserve
Great Barrier Reef Limited Edition IV120 hoursh
Prospex Sea PADI Special Edition41h
Water Resistance
Great Barrier Reef Limited Edition IV300m
Prospex Sea PADI Special Edition200m
MSRP
Great Barrier Reef Limited Edition IV$4,750
Prospex Sea PADI Special Edition$625

Full specifications

Case

7 specs
Diameter
43.5mm
43.8mm
Thickness
12.8mm
Lug-to-Lug
48.7mm
Lug Width
23mm
22mm
Finish
Water Resistance
300m
200m
Caseback

Crystal & Dial

5 specs
Crystal Shape
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
Blue
Indices
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
CALIBRE 400
4R35
Beat Rate
4 vph
0 vph
Power Reserve
120 hoursh
41h
Jewels
21
23
Complications
Date
None

Pricing

1 specs
MSRP
$4,750
$625
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