Side by side

Seiko Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited EditionvsLongines LEGEND DIVER 42 BLACK LACQUERED

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

At a glance

11 of 29 specs differ
Diameter
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition40mm
LEGEND DIVER 42 BLACK LACQUERED42mm
Power Reserve
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition72h
LEGEND DIVER 42 BLACK LACQUERED72h
Water Resistance
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition300m
LEGEND DIVER 42 BLACK LACQUERED300m
MSRP
Prospex Sea Seiko Prospex 1965 Heritage Diver’s Watch Save the Ocean Limited Edition$1,400
LEGEND DIVER 42 BLACK LACQUERED$3,200

Full specifications

Case

4 specs
Diameter
40mm
42mm
Thickness
13mm
12.7mm
Lug-to-Lug
46.4mm
52.6mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Both sides
Lume
LumiBrite on hands, index(es) and bezel
Super-LumiNova

Movement

3 specs
Caliber
6R55
L888.5
Beat Rate
28,800 vph
25,200 vph
Jewels
24
25

Pricing

1 specs
MSRP
$1,400
$3,200

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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 42 BLACK LACQUERED

Owners widely praise the Longines LEGEND DIVER 42 BLACK LACQUERED for its retro design and versatility, with some noting it wears smaller than its dimensions suggest and its crystal height contributes to a perceived thinness. However, the 50mm lug-to-lug length is a point of contention, with some finding it a drawback while others report it fits flush on larger wrists and curves well on smaller ones. The clasp is reported to scratch easily, and some owners note dust can collect on the dial, while the lume is considered not strong and the bracelet lacks end links. Overall, owners value the Longines LEGEND DIVER 42 BLACK LACQUERED for its appealing vintage aesthetic and comfortable wearability, despite some practical concerns regarding the clasp and dial.

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