Side by side
Lum-Tec B64 ChronographvsSeestern S446 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
B64 Chronograph44mm
S446 GMT39.5mm
Power Reserve
B64 Chronograph40h
S446 GMT41hh
Water Resistance
B64 Chronograph100m
S446 GMT100m
MSRP
B64 Chronograph$545
S446 GMT$299
Full specifications
Case
6 specsCategory
Chronograph
GMT
Diameter
44mm
39.5mm
Thickness
—
13mm
Lug-to-Lug
51.5mm
47mm
Lug Width
22mm
20mm
Material
Titanium (DLC coated)
316L Stainless Steel
Crystal & Dial
3 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Domed
Dial Color
Standard
Cream
Movement
5 specsCaliber
—
Seiko NH34A GMT
Beat Rate
28,800 vph
3 vph
Power Reserve
40h
41hh
Jewels
25
24
Complications
None
GMT, Date
Pricing
1 specsMSRP
$545
$299
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