Side by side

Lum-Tec B68 Day DatevsSeiko Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition

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

B68 Day Date
Lum-TecB68 Day Date
MSRP $595
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition
SeikoProspex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition
MSRP $700

At a glance

14 of 29 specs differ
Diameter
B68 Day Date44mm
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition39mm
Power Reserve
B68 Day Date40h
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition40h
Water Resistance
B68 Day Date200m
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition100m
MSRP
B68 Day Date$595
Prospex SPEEDTIMER SPEEDTIMER Solar Chronograph Limited Edition$700

Full specifications

Case

7 specs
Category
Sport
Chronograph
Diameter
44mm
39mm
Thickness
—
13.3mm
Lug-to-Lug
51.5mm
45.5mm
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
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
B68 Day Date
Black
Lume
None
LumiBrite on hands and index(es)

Movement

1 specs
Caliber
Ronda 515
V192

Pricing

1 specs
MSRP
$595
$700

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