Side by side
Lum-Tec B64 ChronographvsLongines MASTER COLLECTION
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
23 of 29 specs differDiameter
B64 Chronograph44mm
MASTER COLLECTION40mm
Power Reserve
B64 Chronograph40h
MASTER COLLECTION72h
Water Resistance
B64 Chronograph100m
MASTER COLLECTION30m
MSRP
B64 Chronograph$545
MASTER COLLECTION$2,850
Full specifications
Case
9 specsCategory
Chronograph
—
Diameter
44mm
40mm
Thickness
—
10.8mm
Lug-to-Lug
51.5mm
46.8mm
Lug Width
22mm
21mm
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
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova
Movement
7 specsCaliber
—
L897.2
Beat Rate
28,800 vph
25,200 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, month and date by annual calendar
Pricing
1 specsMSRP
$545
$2,850
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