Side by side

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited EditionvsLongines LEGEND DIVER

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

At a glance

17 of 29 specs differ
Diameter
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm
LEGEND DIVER39mm
Power Reserve
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h
LEGEND DIVER72h
Water Resistance
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m
LEGEND DIVER300m
MSRP
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400
LEGEND DIVER$3,850

Full specifications

Case

5 specs
Diameter
40mm
39mm
Thickness
13mm
12.7mm
Lug-to-Lug
46.4mm
47mm
Finish
Brushed and polished
Caseback
Solid
Screw-down case back

Crystal & Dial

5 specs
Crystal Shape
Curved
AR Coating
Anti-reflective coating on inner surface
Both sides
Dial Color
Black
White
Indices
Applied
Painted Arabic numerals and indexes
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

6 specs
Caliber
6R55
L888.6
Beat Rate
28,800 vph
25,200 vph
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds

Pricing

1 specs
MSRP
$1,400
$3,850

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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 Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition

The Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition is praised for its compact 40mm case and the new Caliber 6R55 movement offering a 72-hour power reserve. Owners and reviewers highlight the stunning dials as a strong suit for Seiko. However, the 6R movement's accuracy is a point of disappointment for some, who wish for improvements closer to other movements, though others accept it given the excellent overall package. Press images suggest the bracelet end links may appear disjointed. Overall, owners and reviewers rate the Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition well, with the stunning dials and improved power reserve being the biggest reasons.

Longines LEGEND DIVER

Owners widely praise the Longines LEGEND DIVER for its faithful retro design, often calling it one of the best vintage reissues, with the 39mm variant lauded for its perfect size and the 42mm for its versatility. The watch is consistently noted as ISO 6425 compliant and powered by the COSC-certified L888.6 movement with a 72-hour power reserve. Reviewers highlight its sophisticated look, clean no-date dial, and the well-made beads-of-rice bracelet, though some owners find the polished center links or overall polished finish dressier than expected for a diver. Owners are split on the 39mm's bracelet, with one finding it too "blingy" and another praising its comfort. The 42mm version's 50mm lug-to-lug measurement is considered long by some, while others find it comfortable. One owner of the 42mm model reported a scratched hour hand after 15 years, and another noted the original leather strap's poor quality.

From video reviewers

The Longines LEGEND DIVER features a unique blend of vintage design and modern functionality, with 300 meters of water resistance and a 72-hour power reserve. The watch's historical significance and aesthetic appeal are notable strengths. The 7-link bracelet is also a notable feature, although its quality and comfort are not explicitly discussed.

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