Henry Archer AkvavsSeiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Henry Archer Akva at true scale

Akva

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition at true scale

Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

Diameter

40mm

40.5mm

Lug-to-Lug

n/a

47.6mm

Thickness

10.5mm

lowest

13.2mm

Water Resistance

200m

200m

Power Reserve

n/a

70h

MSRP

$560

lowest

$1,250

Movement

Miyota 9039

Seiko 6R35

Case

4 specs
Diameter
40mm
40.5mm
Thickness
10.5mm
13.2mm
Lug-to-Lug
n/a
47.6mm
Lug Width
n/a
20mm

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
Grey
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Miyota 9039
Seiko 6R35
Power Reserve
0h
70h
Jewels
0
24

Pricing

1 specs
MSRP
$560
$1,250
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Reviews

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Henry Archer Akva

Owners widely praise the Henry Archer Akva for its excellent build and finish quality, great size, and value, with many noting its thinness for a dive watch and impressive lume. The clean no-date dial and unique design are frequently highlighted, with some owners finding it versatile enough to be worn alongside luxury brands. One owner reports perfect timekeeping, while another notes an accuracy of approximately -6 seconds per day. The bezel action is criticized by one owner for being slippery with strong ratcheting. On balance, owners rate the Henry Archer Akva highly for its impressive build quality and design at its price point.

From video reviewers

The slim 10.5mm case profile is a key strength. No consensus on weaknesses.

Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition

Owners widely praise the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition for its unique dial color and execution, with one owner noting the 44mm lug-to-lug is perfect for most wrists. The watch is considered a refined piece with a fun factor, featuring a dial inspired by Okinawa's ocean colors expected to have a bright sunburst effect. Accuracy figures for the 6R35 movement range, with one owner reporting -10/+10 seconds per day as "pretty amazing," while others note issues with the 6R movement's accuracy. Some owners find the price of 1500€ too high, suggesting a value closer to 900€. On balance, owners and reviewers rate the Seiko Prospex Sea 1965 Heritage Diver's Save the Ocean Special Edition well for its dial execution and wearability, despite some debate over its price point.

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