Buyalov НВЧ-20vsSeiko 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.

Buyalov НВЧ-20 at true scale

НВЧ-20

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

39.6mm

40.5mm

Lug-to-Lug

n/a

47.6mm

Thickness

n/a

13.2mm

Water Resistance

200m

200m

Power Reserve

n/a

70h

MSRP

n/a

$1,250

Movement

Miyota 9039

Seiko 6R35

Case

4 specs
Diameter
39.6mm
40.5mm
Thickness
n/a
13.2mm
Lug-to-Lug
n/a
47.6mm
Lug Width
n/a
20mm

Crystal & Dial

3 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
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
n/a
$1,250
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Reviews

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

Buyalov НВЧ-20

The Buyalov НВЧ-20 is praised for its strong, coherent design and original material finishes, with its Raketa-style dial and Akula case evoking submarine clocks. Owners widely report its modern lume is highly legible throughout the night, outperforming typical Amphibia lume. The no-date dial is considered attractive, and the red dial pops in natural light. Some users question its "homage" nature and Asian manufacturing, with availability and payment issues being significant concerns. One owner notes the 46mm case size might be large for smaller wrists, and others find the bezel design unfinished and dial color choices too trendy. Overall, owners rate the Buyalov НВЧ-20 highly for its design and lume performance at the price.

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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