Side by side
Omega Constellation Observatory Co Axial Master Chronometer 39 4mmvsGrand Seiko SBGA384
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
15 of 29 specs differDiameter
Constellation Observatory Co Axial Master Chronometer 39 4mm39.4mm
SBGA38440mm
Power Reserve
Constellation Observatory Co Axial Master Chronometer 39 4mm60h
SBGA38472h
Water Resistance
Constellation Observatory Co Axial Master Chronometer 39 4mm30m
SBGA384100m
MSRP
Constellation Observatory Co Axial Master Chronometer 39 4mm$37,900
SBGA384$29,500
Full specifications
Case
6 specsDiameter
39.4mm
40mm
Thickness
12.23mm
12.5mm
Lug-to-Lug
47.2mm
46.2mm
Material
18kt Moonshine Gold
Gold
Finish
O-MEGASTEEL
—
Water Resistance
30m
100m
Crystal & Dial
3 specsCrystal Shape
Domed
—
AR Coating
—
Yes
Dial Color
Silver
—
Movement
5 specsCaliber
Omega 8914
9R15
Type
Automatic
Spring Drive
Power Reserve
60h
72h
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$37,900
$29,500
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