Side by side
Lum-Tec B64 ChronographvsMarathon GSAR (Government Search & Rescue) Diver's Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
B64 Chronograph44mm
GSAR (Government Search & Rescue) Diver's Automatic41mm
Power Reserve
B64 Chronograph40h
GSAR (Government Search & Rescue) Diver's Automatic40h
Water Resistance
B64 Chronograph100m
GSAR (Government Search & Rescue) Diver's Automatic300m
MSRP
B64 Chronograph$545
GSAR (Government Search & Rescue) Diver's Automatic$2,100
Full specifications
Case
7 specsCategory
Chronograph
Diver
Diameter
44mm
41mm
Thickness
—
14mm
Lug-to-Lug
51.5mm
48mm
Lug Width
22mm
20mm
Material
Titanium (DLC coated)
316L Stainless Steel
Water Resistance
100m
300m
Crystal & Dial
2 specsCrystal
Domed Sapphire
Sapphire
Dial Color
Standard
Anthracite
Movement
1 specsCaliber
—
Sellita SW200-1
Pricing
1 specsMSRP
$545
$2,100
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