Side by side

Horage Omnium K2vsLongines PrimaLuna

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

Omnium K2
HorageOmnium K2
MSRP $5,140
PrimaLuna
LonginesPrimaLuna
MSRP $2,950

At a glance

19 of 29 specs differ
Diameter
Omnium K237.3mm
PrimaLuna34mm
Power Reserve
Omnium K272h
PrimaLuna72h
Water Resistance
Omnium K2100m
PrimaLuna30m
MSRP
Omnium K2$5,140
PrimaLuna$2,950

Full specifications

Case

7 specs
Diameter
37.3mm
34mm
Thickness
7.95mm
11.6mm
Lug-to-Lug
43.8mm
41mm
Lug Width
20mm
8mm
Finish
Brushed and polished
Water Resistance
100m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
No
Both sides
Dial Color
Black
Blue
Indices
Applied
Diamond indexes

Movement

7 specs
Caliber
Horage K2
L899.5
Beat Rate
28,800 vph
25,200 vph
Power Reserve
72h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$5,140
$2,950

Follow this matchup

Get a note when Horage Omnium K2 vs Longines PrimaLuna gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Horage Omnium K2

The Horage Omnium K2 is lauded for its slim 7.95mm profile and chronometer-certified K2 micro-rotor movement with a 72-hour power reserve. Reviewers note its technical innovation, including a proprietary silicon escapement and modular K1 movement, and praise its value. However, some find the molded, luminous hour numerals too whimsical, and the explicit mention of "silicon escapement" on the dial is considered unnecessary. On balance, reviewers rate the Horage Omnium K2 highly for its technical innovation and slim profile at its price point.

Longines PrimaLuna

Owners widely praise the Longines PrimaLuna for its stylish, understated design and comfortable 26.5mm and 34mm case sizes, with some preferring the quartz for its lower maintenance and others the automatic for its craftsmanship. The automatic movement, an L899.5 or Caliber L899, offers a 72-hour power reserve and exhibits consistent accuracy averaging a loss of 1.3 seconds per day in testing, though it runs 3-4 seconds slower on the wrist. The redesigned collection features a curvier case with contemporary lug integration and is available in steel or bi-metal. On balance, owners and reviewers appreciate the Longines PrimaLuna for its elegant styling and reliable automatic movement, though some find its brand prestige and design less compelling compared to certain luxury alternatives.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.