Side by side

Lum-Tec B66 Day DatevsSeestern S450 Ocean Star

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

B66 Day Date
Lum-TecB66 Day Date
MSRP $545
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

15 of 29 specs differ
Diameter
B66 Day Date44mm
S450 Ocean Star40mm
Power Reserve
B66 Day Date40h
S450 Ocean Star41h
Water Resistance
B66 Day Date100m
S450 Ocean Star100m
MSRP
B66 Day Date$545
S450 Ocean Star$299

Full specifications

Case

6 specs
Category
Sport
Diver
Diameter
44mm
40mm
Thickness
—
12mm
Lug-to-Lug
51.5mm
48mm
Lug Width
22mm
20mm
Material
Titanium (DLC coated)
316L Stainless Steel

Crystal & Dial

3 specs
Crystal
Domed Sapphire
Sapphire
Dial Color
Standard
White
Lume
None
Tritium

Movement

5 specs
Caliber
—
TMI NH35A
Beat Rate
28,800 vph
21,600 vph
Power Reserve
40h
41h
Jewels
25
24
Complications
None
GMT, Date

Pricing

1 specs
MSRP
$545
$299

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