Side by side

Horage Revolution 3 MicroRegvsSeiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

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

Revolution 3 MicroReg
HorageRevolution 3 MicroReg
MSRP $5,320

At a glance

13 of 29 specs differ
Diameter
Revolution 3 MicroReg41mm
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition44mm
Power Reserve
Revolution 3 MicroReg72h
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition50h
Water Resistance
Revolution 3 MicroReg100m
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition200m
MSRP
Revolution 3 MicroReg$5,320
Prospex Sea 1970 Heritage Diver's Black Series Limited Edition$3,300

Full specifications

Case

6 specs
Category
Dress
Diver
Diameter
41mm
44mm
Thickness
10.05mm
13mm
Lug-to-Lug
48.22mm
49.3mm
Lug Width
22mm
20mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal Shape
Flat
Curved
AR Coating
No
Anti-reflective coating on inner surface
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
Horage K2
8L35
Power Reserve
72h
50h
Jewels
25
26

Pricing

1 specs
MSRP
$5,320
$3,300

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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.

Horage Revolution 3 MicroReg

The Horage Revolution 3 MicroReg showcases an innovative external micro-adjustment system for on-the-fly regulation via electromagnetic pulse, a remarkable feat of micro-engineering. This proof-of-concept prototype is still in early development, with a projected launch in late summer 2026 and a founder's price of CHF 3,900. On balance, reviewers highlight the revolutionary regulation technology as the defining characteristic of the Horage Revolution 3 MicroReg.

Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition

Owners widely praise the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition for its attractive, well-made design and gorgeous dial, noting its jewel-toned teal color and rippling-water pattern. The bezel action is smooth with a muted sound, and the case and bracelet offer a more comfortable feel than previous iterations. However, multiple owners express disappointment with the accuracy of the 6R movement at its price point, with some noting theirs runs slow, and consider the price too high. The steep rehaut and marker size make the 24-hour numbers difficult to read, and some find the case design makes the watch feel top-heavy despite wearing smaller. Overall, owners rate the Seiko Prospex Sea 1970 Heritage Diver's Black Series Limited Edition highly for its striking dial and refined case design, despite concerns regarding movement accuracy at its price.

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