Side by side
Sheffield 1A 40mmvsTimefactors Aerotimer
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
1A 40mm40mm
Aerotimer42mm
Power Reserve
1A 40mm—
Aerotimer—
Water Resistance
1A 40mm200m
Aerotimer100m
MSRP
1A 40mm$228
Aerotimer$416
Full specifications
Case
3 specsDiameter
40mm
42mm
Lug-to-Lug
48mm
50mm
Water Resistance
200m
100m
Crystal & Dial
2 specsDial Color
—
Black
Lume
None
SuperLuminova C3
Movement
3 specsCaliber
Seiko NH35
Seiko VK64 (Meca-Quartz)
Type
Automatic
Mecaquartz
Power Reserve
0h
—
Pricing
1 specsMSRP
$228
$416
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