Side by side
Oblvlo JM TourbillonvsLongines ULTRA-CHRON CLASSIC
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
JM Tourbillon42mm
ULTRA-CHRON CLASSIC40mm
Power Reserve
JM Tourbillon65h
ULTRA-CHRON CLASSIC72h
Water Resistance
JM Tourbillon50m
ULTRA-CHRON CLASSIC30m
MSRP
JM Tourbillon$516
ULTRA-CHRON CLASSIC$4,000
Full specifications
Case
8 specsCategory
Skeleton
—
Diameter
42mm
40mm
Thickness
12mm
10.95mm
Lug-to-Lug
46mm
47.2mm
Lug Width
20mm
21mm
Finish
Brushed and polished
—
Water Resistance
50m
30m
Caseback
Solid
Transparent case back with sapphire crystal
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
Both sides
Dial Color
Black
Silver
Indices
Applied
Applied indexes
Movement
7 specsCaliber
OBL.8024
L836.6
Beat Rate
28,800 vph
25,200 vph
Power Reserve
65h
72h
Jewels
20
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Tourbillon
Hours, minutes, seconds, moon phase display and date indicated by small hand at
Pricing
1 specsMSRP
$516
$4,000
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