Side by side
Lum-Tec B64 ChronographvsYema Yachtingraff Seconde/Seconde/
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
B64 Chronograph44mm
Yachtingraff Seconde/Seconde/38.5mm
Power Reserve
B64 Chronograph40h
Yachtingraff Seconde/Seconde/40h
Water Resistance
B64 Chronograph100m
Yachtingraff Seconde/Seconde/50m
MSRP
B64 Chronograph$545
Yachtingraff Seconde/Seconde/$499
Full specifications
Case
6 specsDiameter
44mm
38.5mm
Thickness
—
13mm
Lug-to-Lug
51.5mm
—
Lug Width
22mm
19mm
Material
Titanium (DLC coated)
316L Stainless Steel
Water Resistance
100m
50m
Crystal & Dial
1 specsCrystal
Domed Sapphire
Sapphire
Movement
1 specsType
Automatic
Quartz
Pricing
1 specsMSRP
$545
$499
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