Side by side
Aera Instruments C-1vsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
C-142mm
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition42.5mm
Power Reserve
C-156h
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition45h
Water Resistance
C-1100m
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition100m
MSRP
C-1$2,200
Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition$3,000
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
42mm
42.5mm
Thickness
15.75mm
15.1mm
Lug-to-Lug
49.55mm
50mm
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 8R46
Power Reserve
56h
45h
Jewels
27
34
Pricing
1 specsMSRP
$2,200
$3,000
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Aera Instruments C-1 vs Seiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited Edition gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
CWC 6BB-WRvsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited EditionCWC (Cabot Watch Company) 6BB-WRvsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited EditionSmiths MONOPUSHER PRS-57vsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited EditionBamford of London Carbon B347vsSeiko Prospex SPEEDTIMER SPEEDTIMER Mechanical Chronograph Limited EditionAera Instruments C-1vsAstor + Banks ChronoAera Instruments C-1vsMemphis Belle Crono B 17 F