Side by side

Lum-Tec B70vsSeiko Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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B70
Lum-TecB70
MSRP $1,095
See the full B70
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
SeikoProspex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
MSRP $2,400
See the full Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition
Buy from Lum-Tec ↗
Buy used on eBay ↗
Buy from Seiko ↗
Buy used on eBay ↗

At a glance

15 of 29 specs differ
Diameter
B7044mm
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition42mm
Power Reserve
B70—
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition—
Water Resistance
B70200m
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition100m
MSRP
B70$1,095
Prospex SPEEDTIMER Seiko Brand 100th Anniversary SPEEDTIMER Limited Edition$2,400

Full specifications

Case

7 specs
Category
Sport
Chronograph
Diameter
44mm
42mm
Thickness
13.6mm
12.9mm
Lug-to-Lug
51.5mm
49.6mm
Lug Width
22mm
20mm
Material
316L Stainless Steel (DLC coated)
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

5 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
—
Curved
AR Coating
—
Super-clear coating
Dial Color
B70
—
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Ronda 515
Seiko 5X83
Jewels
0
14

Pricing

1 specs
MSRP
$1,095
$2,400
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