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.

НВЧ-20

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 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
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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