Side by side

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

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

Prospex Sea
SeikoProspex Sea
MSRP $900

At a glance

7 of 29 specs differ
Diameter
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Prospex Sea41mm
Power Reserve
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Prospex Sea70h
Water Resistance
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
Prospex Sea200m
MSRP
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300
Prospex Sea$900

Full specifications

Case

3 specs
Diameter
44mm
41mm
Thickness
13mm
12.3mm
Lug-to-Lug
49.3mm
46.9mm

Movement

3 specs
Caliber
8L35
6R35
Power Reserve
50h
70h
Jewels
26
24

Pricing

1 specs
MSRP
$3,300
$900

Follow this matchup

Get a note when Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

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 Prospex Sea

Owners widely praise the Seiko Prospex Sea for its excellent lume, robust build, and value, with many highlighting the comfortable 4 o'clock crown and reliable movements. Reviewers note impressive case finishing and attractive dials, with specific models lauded for their gradient blue designs and smooth bezel actions. Accuracy figures vary, with one owner reporting +9 seconds/day after demagnetization, while others find the watches to be good first "proper" watches. Some owners find the stock rubber straps uncomfortable or the overall size substantial on smaller wrists. On balance, owners and reviewers rate the Seiko Prospex Sea highly for its combination of strong dive watch functionality and appealing design at its price point.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.