Side by side

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited EditionvsSeiko King Turtle

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

At a glance

10 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
King Turtle45mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
King Turtle41h
Water Resistance
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
King Turtle200m
MSRP
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300
King Turtle$650

Full specifications

Case

4 specs
Diameter
44mm
45mm
Thickness
13mm
13.2mm
Lug-to-Lug
49.3mm
47.7mm
Lug Width
20mm
22mm

Crystal & Dial

2 specs
Crystal Shape
Curved
Flat
Lume
LumiBrite on hands, index(es) and bezel
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
8L35
4R36
Power Reserve
50h
41h
Jewels
26
24

Pricing

1 specs
MSRP
$3,300
$650

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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 1970 Heritage Diver's Black Series Limited Edition

Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition for its attractive, well-made design and gorgeous dial, noting its jewel-toned teal color and rippling-water pattern. The bezel action is smooth with a muted sound, and the case and bracelet offer a more comfortable feel than previous iterations. However, multiple owners express disappointment with the accuracy of the 6R movement at its price point, with some noting theirs runs slow, and consider the price too high. The steep rehaut and marker size make the 24-hour numbers difficult to read, and some find the case design makes the watch feel top-heavy despite wearing smaller. Overall, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition highly for its striking dial and refined case design, despite concerns regarding movement accuracy at its price.

Seiko King Turtle

Owners widely praise the Seiko Prospex Sea for its excellent value, robust build, and superior lume, with many appreciating its faithful recreation of classic designs and proven movements like the 4R36 and 6R15. Reviewers highlight impressive case finishing and durability, noting that even larger models wear smaller than expected due to thoughtful case design. Some owners find the solar quartz models a great entry point, appreciating their design and solar functionality. However, specific variants receive critiques: the bracelet clasp on the Samurai is described as underwhelming, and the Sumo's bracelet width and clasp are seen as too narrow and rudimentary, respectively. The SPB183 is considered expensive for a Japanese watch, and its lume is noted as not quite matching older Seiko Monster models. The GMT function on the SPB519 is deemed less practical for serious travel, and its bezel clicks are described as quieter and mushier.

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