Side by side
Lum-Tec B64 ChronographvsTudor Black Bay Chrono S&G
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
B64 Chronograph44mm
Black Bay Chrono S&G41mm
Power Reserve
B64 Chronograph40h
Black Bay Chrono S&G70h
Water Resistance
B64 Chronograph100m
Black Bay Chrono S&G200m
MSRP
B64 Chronograph$545
Black Bay Chrono S&G$8,525
Full specifications
Case
7 specsDiameter
44mm
41mm
Thickness
—
14.4mm
Lug-to-Lug
51.5mm
46mm
Material
Titanium (DLC coated)
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Standard
Black
Indices
Applied
—
Movement
7 specsCaliber
—
MT5813
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Chronograph
Pricing
1 specsMSRP
$545
$8,525
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