Side by side

Lum-Tec B64 ChronographvsSeestern S450 Ocean Star

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

B64 Chronograph
Lum-TecB64 Chronograph
MSRP $545
S450 Ocean Star
SeesternS450 Ocean Star
MSRP $299

At a glance

15 of 29 specs differ
Diameter
B64 Chronograph44mm
S450 Ocean Star40mm
Power Reserve
B64 Chronograph40h
S450 Ocean Star41h
Water Resistance
B64 Chronograph100m
S450 Ocean Star100m
MSRP
B64 Chronograph$545
S450 Ocean Star$299

Full specifications

Case

6 specs
Category
Chronograph
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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