Side by side
Lum-Tec B64 ChronographvsTissot Gentleman Open Heart
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
B64 Chronograph44mm
Gentleman Open Heart40mm
Power Reserve
B64 Chronograph40h
Gentleman Open Heart80h
Water Resistance
B64 Chronograph100m
Gentleman Open Heart100m
MSRP
B64 Chronograph$545
Gentleman Open Heart$1,025
Full specifications
Case
5 specsDiameter
44mm
40mm
Thickness
—
11.5mm
Lug-to-Lug
51.5mm
40mm
Lug Width
22mm
21mm
Material
Titanium (DLC coated)
Stainless Steel
Crystal & Dial
6 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Standard
Silver
Indices
Applied
Indexes
Lume
None
Super-LumiNova ®
Movement
1 specsPower Reserve
40h
80h
Pricing
1 specsMSRP
$545
$1,025
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