Side by side

Lum-Tec B68 Day DatevsSeiko Astron

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
Astron
SeikoAstron
MSRP $2,500

At a glance

14 of 29 specs differ
Diameter
B68 Day Date44mm
Astron42mm
Power Reserve
B68 Day Date40h
Astron40h
Water Resistance
B68 Day Date200m
Astron100m
MSRP
B68 Day Date$595
Astron$2,500

Full specifications

Case

7 specs
Category
Sport
GMT
Diameter
44mm
42mm
Thickness
—
12.4mm
Lug-to-Lug
51.5mm
49.5mm
Lug Width
22mm
14mm
Material
316L Stainless Steel (DLC coated)
Titanium
Water Resistance
200m
100m

Crystal & Dial

4 specs
Crystal
Domed Sapphire
Sapphire
AR Coating
Inner
Super-clear coating
Dial Color
B68 Day Date
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
Ronda 515
5X83
Jewels
25
14

Pricing

1 specs
MSRP
$595
$2,500

Follow this matchup

Get a note when Lum-Tec B68 Day Date vs Seiko Astron gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Marathon TSAR (Tritium Search & Rescue) Diver's Quartz
Marathonmicro

TSAR (Tritium Search & Rescue) Diver's Quartz

Ref. 41mm-official-duvdevan-large-divers-quartz-tsar
46mm·Quartz·300m WR
$1,550MSRP
—Used
AVI-8 Hawker Hurricane Carey Dual Time
AVI-8micro

Hawker Hurricane Carey Dual Time

9 watches · 38 variantsHawker
43mm·Quartz
$260MSRP
—Used
Spinnaker Fleuss Chronograph
Spinnakermicro

Fleuss Chronograph

9 watches · 34 variantsFleuss
43mm·Quartz·100m WR
$325MSRP
—Used
Dan Henry 1963
Dan Henrymicro

1963

7 variants1963
42.5mm·Quartz
$380MSRP
—Used
AVI-8 Hawker Hunter Atlas Dual Time Chronograph
AVI-8micro

Hawker Hunter Atlas Dual Time Chronograph

9 watches · 42 variantsHawker
43mm·Quartz
$380MSRP
—Used
Vaer D4 Meridian Solar
Vaermicro
Meridian

D4 Meridian Solar

6 watches · 23 variantsMeridian
42mm·Quartz·200m WR
$399MSRP
—Used
Dan Henry 1945
Dan Henrymicro

1945

3 watches · 5 variants1945
41.5mm·Quartz
$300MSRP
—Used
Dryden Chrono Diver Series 1
Drydenmicro

Chrono Diver Series 1

3 watches · 18 variantsChrono Diver
42mm·Quartz·101m WR
$349MSRP
—Used
All alternatives to the B68 Day Date →All alternatives to the Astron →
Explore the full catalog
Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Marathon TSAR (Tritium Search & Rescue) Diver's QuartzvsSeiko AstronSpinnaker Fleuss ChronographvsSeiko AstronAVI-8 Hawker Hunter Atlas Dual Time ChronographvsSeiko AstronSeiko AstronvsVaer D4 Meridian SolarAVI-8 Hawker Hurricane Carey Dual TimevsLum-Tec B68 Day DateLum-Tec B68 Day DatevsDan Henry 1963
Edit this comparisonAdd another watchExplore more 41–45mm watches