Side by side
Longines ULTRA-CHRON CLASSICvsOblvlo XM Racing
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
21 of 29 specs differDiameter
ULTRA-CHRON CLASSIC40mm
XM Racing42mm
Power Reserve
ULTRA-CHRON CLASSIC72h
XM Racing42h
Water Resistance
ULTRA-CHRON CLASSIC30m
XM Racing50m
MSRP
ULTRA-CHRON CLASSIC$4,000
XM Racing$269
Full specifications
Case
8 specsCategory
—
Sport
Diameter
40mm
42mm
Thickness
10.95mm
12mm
Lug-to-Lug
47.2mm
46mm
Lug Width
21mm
20mm
Finish
—
Brushed and polished
Water Resistance
30m
50m
Caseback
Transparent case back with sapphire crystal
Solid
Crystal & Dial
5 specsCrystal Shape
—
Flat
AR Coating
Both sides
Inner
Dial Color
Silver
Black
Indices
Applied indexes
Applied
Lume
Super-LumiNova
None
Movement
7 specsCaliber
L836.6
Miyota 82S7
Beat Rate
25,200 vph
28,800 vph
Power Reserve
72h
42h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds, moon phase display and date indicated by small hand at
None
Pricing
1 specsMSRP
$4,000
$269
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