Side by side

Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special EditionvsLongines HYDROCONQUEST

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

HYDROCONQUEST
LonginesHYDROCONQUEST
MSRP $2,000

At a glance

18 of 29 specs differ
Diameter
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition40mm
HYDROCONQUEST41mm
Power Reserve
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition72h
HYDROCONQUEST72h
Water Resistance
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition300m
HYDROCONQUEST300m
MSRP
Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition$1,550
HYDROCONQUEST$2,000

Full specifications

Case

7 specs
Diameter
40mm
41mm
Thickness
13mm
11.9mm
Lug-to-Lug
46.4mm
53.5mm
Lug Width
20mm
21mm
Material
Stainless Steel
Ceramic
Finish
Brushed and polished
Caseback
Solid

Crystal & Dial

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

Movement

5 specs
Caliber
6R55
L888.5
Beat Rate
28,800 vph
0 vph
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$1,550
$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 1965 Heritage Diver's Watch PADI Special Edition

The Seiko Prospex Sea 1965 Heritage Diver's Watch PADI Special Edition is praised for its attractive emerald green sunburst dial with gold accents and its comfortable wearability. Owners note the dial looks gorgeous in the right light, and some find it fits better than other models. The watch features a 40mm steel case, a domed sapphire crystal, and 300m water resistance, powered by the 6R55 movement with a 72-hour power reserve. However, some find the watch wears top-heavy due to its density and case design, and the bracelet clasp is criticized for stamped parts and limited micro-adjustment. The retail price of €1,700 is considered high by some, with sales recommended. Overall, owners and reviewers appreciate the dial's beauty and the watch's comfortable fit, despite some reservations about its weight distribution and bracelet clasp.

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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