Side by side
Aera Instruments C-1vsSeiko Prospex SPEEDTIMER Mechanical Chronograph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
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At a glance
12 of 29 specs differDiameter
C-142mm
Prospex SPEEDTIMER Mechanical Chronograph42mm
Power Reserve
C-156h
Prospex SPEEDTIMER Mechanical Chronograph45h
Water Resistance
C-1100m
Prospex SPEEDTIMER Mechanical Chronograph100m
MSRP
C-1$2,200
Prospex SPEEDTIMER Mechanical Chronograph$2,500
Full specifications
Case
4 specsCategory
—
Chronograph
Thickness
15.75mm
14.6mm
Lug-to-Lug
49.55mm
49.5mm
Lug Width
22mm
20mm
Crystal & Dial
4 specsCrystal Shape
—
Curved
AR Coating
—
Anti-reflective coating on inner surface
Dial Color
Cloud
—
Lume
None
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Sellita SW510
Seiko 8R48
Power Reserve
56h
45h
Jewels
27
34
Pricing
1 specsMSRP
$2,200
$2,500
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