Side by side

Dryden Heartlander AutomaticvsSeiko Prospex Sea Save the Ocean Special Edition

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

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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.

Dryden Heartlander Automatic

The Dryden Heartlander Automatic is widely praised for its versatility, comfortable 38mm case that wears smaller than its dimensions suggest, and excellent dial variety. Reviewers highlight its value at $500, noting good finishing, a domed sapphire crystal, and 100m water resistance. The tapering bracelet with solid links is also considered comfortable. One owner notes the crown may protrude slightly and irritate some wearers. On balance, owners and reviewers rate the Dryden Heartlander Automatic highly for its combination of wearability, features, and value.

Seiko Prospex Sea Save the Ocean Special Edition

The Seiko Prospex Sea Save the Ocean Special Edition is widely praised for its visually striking and unique dial designs, often described as a standout feature offering significant aesthetic appeal for the price. Owners and reviewers consistently highlight the attractive blue gradients, wave patterns, and textured finishes that evoke ocean depths. The watch is generally considered comfortable to wear, with a well-proportioned case size and good build quality. Accuracy is reported as around +5 seconds per day by one owner. However, several sources point to the bracelet and clasp as a weak point, with criticisms including pin-and-collar construction, stamped clasps, and a lack of a convenient diver's extension. Some reviewers also note potential issues with bezel alignment and day/date wheel alignment. On balance, owners and reviewers rate the Seiko Prospex Sea Save the Ocean Special Edition highly for its exceptional dial design and overall value.

At a glance

12 of 29 specs differ
Diameter
Heartlander Automatic38mm
Prospex Sea Save the Ocean Special Edition42.4mm
Power Reserve
Heartlander Automatic
Prospex Sea Save the Ocean Special Edition41h
Water Resistance
Heartlander Automatic101m
Prospex Sea Save the Ocean Special Edition200m
MSRP
Heartlander Automatic$600
Prospex Sea Save the Ocean Special Edition$550

Full specifications

Case

5 specs
Category
Field
Diver
Diameter
38mm
42.4mm
Thickness
11.2mm
13.4mm
Lug-to-Lug
46mm
49.4mm
Water Resistance
101m
200m

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Hardlex
Dial Color
Goldfinch
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
Seiko 4R36
Power Reserve
0h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$600
$550
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