Side by side
Lum-Tec B64 ChronographvsLongines MASTER COLLECTION CHRONOGRAPH
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
19 of 29 specs differDiameter
B64 Chronograph44mm
MASTER COLLECTION CHRONOGRAPH44mm
Power Reserve
B64 Chronograph40h
MASTER COLLECTION CHRONOGRAPH66h
Water Resistance
B64 Chronograph100m
MASTER COLLECTION CHRONOGRAPH30m
MSRP
B64 Chronograph$545
MASTER COLLECTION CHRONOGRAPH$3,800
Full specifications
Case
6 specsThickness
—
14.4mm
Lug-to-Lug
51.5mm
51.8mm
Material
Titanium (DLC coated)
Stainless Steel
Finish
Brushed and polished
—
Water Resistance
100m
30m
Caseback
Solid
Transparent case back with sapphire crystal
Crystal & Dial
6 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Standard
Blue
Indices
Applied
Applied indexes
Lume
None
Super-LumiNova
Movement
6 specsCaliber
—
L688.5
Power Reserve
40h
66h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, small seconds at 9 o'clock and date
Pricing
1 specsMSRP
$545
$3,800
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