Side by side

Dryden Heartlander SolarvsSeiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

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

Heartlander Solar
DrydenHeartlander Solar
MSRP $279

At a glance

13 of 29 specs differ
Diameter
Heartlander Solar38mm
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation39.5mm
Power Reserve
Heartlander Solar40h
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation45h
Water Resistance
Heartlander Solar101m
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation200m
MSRP
Heartlander Solar$279
Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation$2,800

Full specifications

Case

6 specs
Category
Field
Diver
Diameter
38mm
39.5mm
Thickness
11mm
12.3mm
Lug-to-Lug
46mm
47.2mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
101m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Box
AR Coating
Inner
Anti-reflective coating on inner surface
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
6L37
Power Reserve
40h
45h
Jewels
25
26

Pricing

1 specs
MSRP
$279
$2,800

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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 Solar

The Dryden Heartlander Solar is widely praised for its wearability, with its 38mm case and thin profile making it a versatile, go-anywhere watch. Owners and reviewers highlight its exceptional lume, comfortable president-style bracelet, and compelling $500 price point. The solar power feature is appreciated for its convenience, eliminating the need for winding. Some owners note the 38mm case can feel small on wrists just under seven inches, and one reviewer flags that the prominent crown may irritate some wearers. The use of a Miyota movement is seen as a positive for durability and affordability. On balance, owners and reviewers rate the Dryden Heartlander Solar highly for its excellent wearability and value at the $500 price point.

Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation

The Seiko Prospex Marinemaster Marinemaster 1965 Diver’s Modern Re-interpretation is noted for its refined, slimmed-down 39.5mm stainless steel case with a "super hard" coating and a box-shaped sapphire crystal. It offers 200 meters of water resistance and is powered by the slim Caliber 6L37 automatic movement, which has a 46-hour power reserve and an accuracy rating of -10/+15 seconds per day. Reviewers highlight its wearability and functionality as a dive watch, with one noting it as Seiko's thinnest diver ever at 12.3mm. However, concerns are raised about Seiko's continued reliance on the 62MAS design, with one reviewer wishing the Marinemaster remained a separate line, and the bracelet's end-links appearing mismatched in initial images. Its price of A$4,650 is considered high given its specifications compared to competitors.

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