Side by side

Seiko Prospex Sea PADI Special EditionvsLongines HYDROCONQUEST

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

Prospex Sea PADI Special Edition
SeikoProspex Sea PADI Special Edition
MSRP $650
HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,000

At a glance

21 of 29 specs differ
Diameter
Prospex Sea PADI Special Edition41.7mm
HYDROCONQUEST41mm
Power Reserve
Prospex Sea PADI Special Edition41h
HYDROCONQUEST72h
Water Resistance
Prospex Sea PADI Special Edition200m
HYDROCONQUEST300m
MSRP
Prospex Sea PADI Special Edition$650
HYDROCONQUEST$2,000

Full specifications

Case

8 specs
Diameter
41.7mm
41mm
Thickness
12.3mm
11.9mm
Lug-to-Lug
49.5mm
53.5mm
Lug Width
20mm
21mm
Material
Stainless Steel
Ceramic
Finish
Brushed and polished
Water Resistance
200m
300m
Caseback
Solid

Crystal & Dial

6 specs
Crystal
Hardlex
Sapphire
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Green
Indices
Applied
Lume
LumiBrite on hands, index(es) and bezel
None

Movement

6 specs
Caliber
4R35
L888.5
Beat Rate
28,800 vph
0 vph
Power Reserve
41h
72h
Jewels
23
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$650
$2,000

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What people say

Owners + reviewers, side by side

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

Seiko Prospex Sea PADI Special Edition

The Seiko Prospex Sea PADI Special Edition is widely praised for its attractive blue and red PADI colors, rich dial aesthetic, and excellent lume that stands out even in dim environments. Owners highlight its robust build quality and excellent bezel action, noting the wave dial is a favorite. However, the Hardlex crystal and the 4R36 movement's accuracy range of +45 to -35 seconds per day are identified as compromises for the price. Some owners find the diver's extension difficult to open and the bracelet adjustment challenging, though manageable. On balance, owners and reviewers rate the Seiko Prospex Sea PADI Special Edition highly for its build quality and striking dial design at its price point.

Longines HYDROCONQUEST

Owners widely praise the Longines Hydroconquest for its attractive sunburst blue dial and accurate timekeeping, with one owner reporting a loss of only 2 seconds per day. However, the bracelet is frequently criticized for lacking micro-adjustments and having pinch-prone links, and the screw-down crown is noted as inconvenient and difficult to operate by multiple owners. Some owners also flag the bezel action as ratchety with back play, and one owner found the lugs sharp and the overall design uncomfortable, leading them to sell the watch. On balance, owners appreciate the Longines Hydroconquest's aesthetic appeal and value, despite significant reservations about its bracelet and crown usability.

From video reviewers

The bezel action is praised for its smooth and precise rotation. Lume brightness is a shared weakness, found to be somewhat lacking. Reviewers disagreed on the watch's value proposition compared to alternatives.

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