Side by side
Lum-Tec B64 ChronographvsLongines LONGINES SPIRIT FLYBACK PROTOTYPE
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
8 of 29 specs differDiameter
B64 Chronograph44mm
LONGINES SPIRIT FLYBACK PROTOTYPE42mm
Power Reserve
B64 Chronograph40h
LONGINES SPIRIT FLYBACK PROTOTYPE40h
Water Resistance
B64 Chronograph100m
LONGINES SPIRIT FLYBACK PROTOTYPE100m
MSRP
B64 Chronograph$545
LONGINES SPIRIT FLYBACK PROTOTYPE$7,400
Full specifications
Case
4 specsDiameter
44mm
42mm
Thickness
—
17mm
Lug-to-Lug
51.5mm
49.5mm
Material
Titanium (DLC coated)
Stainless Steel
Crystal & Dial
2 specsCrystal
Domed Sapphire
Sapphire
Dial Color
Standard
Green
Movement
1 specsCaliber
—
L791.4
Pricing
1 specsMSRP
$545
$7,400
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