Side by side
Longines ULTRA-CHRON CLASSICvsYema Radiance
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
23 of 29 specs differDiameter
ULTRA-CHRON CLASSIC37mm
Radiance30mm
Power Reserve
ULTRA-CHRON CLASSIC52h
Radiance40h
Water Resistance
ULTRA-CHRON CLASSIC50m
Radiance30m
MSRP
ULTRA-CHRON CLASSIC$3,900
Radiance$279
Full specifications
Case
9 specsCategory
—
Dress
Diameter
37mm
30mm
Thickness
10.95mm
6.3mm
Lug-to-Lug
44.6mm
—
Lug Width
19mm
14mm
Material
Stainless Steel
316L Stainless Steel
Finish
—
Brushed and polished
Water Resistance
50m
30m
Caseback
Screw-down case back
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
8 specsCaliber
L836.6
—
Type
Automatic
Quartz
Beat Rate
36,000 vph
28,800 vph
Power Reserve
52h
40h
Jewels
0
25
Hacking
No
Yes
Hand-winding
No
Yes
Complications
Hours, minutes, seconds and date
None
Pricing
1 specsMSRP
$3,900
$279
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