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Omega Speedmaster Calibre 321 Chronograph 39 7mmvsBaltic Scalegraph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
16 of 29 specs differDiameter
Speedmaster Calibre 321 Chronograph 39 7mm39.7mm
Scalegraph39.5mm
Power Reserve
Speedmaster Calibre 321 Chronograph 39 7mm55h
Scalegraph63h
Water Resistance
Speedmaster Calibre 321 Chronograph 39 7mm50m
Scalegraph100m
MSRP
Speedmaster Calibre 321 Chronograph 39 7mm$17,300
Scalegraph$1,766
Full specifications
Case
6 specsDiameter
39.7mm
39.5mm
Thickness
13.7mm
14.1mm
Lug-to-Lug
48mm
47mm
Lug Width
19mm
20mm
Finish
Steel
—
Water Resistance
50m
100m
Crystal & Dial
4 specsCrystal Shape
Domed
—
AR Coating
—
Yes
Dial Color
Black
Blue
Lume
None
BGW9
Movement
5 specsCaliber
Omega 321
Sellita SW510
Power Reserve
55h
63h
Hacking
Yes
No
Hand-winding
Yes
No
Complications
Chronograph
None
Pricing
1 specsMSRP
$17,300
$1,766
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