Side by side
Lum-Tec B64 ChronographvsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
B64 Chronograph44mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
B64 Chronograph40h
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
B64 Chronograph100m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
B64 Chronograph$545
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500
Full specifications
Case
5 specsDiameter
44mm
42mm
Thickness
—
14.6mm
Lug-to-Lug
51.5mm
49.5mm
Lug Width
22mm
20mm
Material
Titanium (DLC coated)
Stainless Steel
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Standard
Black
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
—
8R48
Power Reserve
40h
45h
Jewels
25
34
Pricing
1 specsMSRP
$545
$2,500
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