Side by side

Sheffield 1AvsUndone Ronin Automatic

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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1A
Sheffield1A
MSRP $223
See the full 1A
Ronin Automatic
UndoneRonin Automatic
MSRP $380
See the full Ronin Automatic
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At a glance

9 of 29 specs differ
Diameter
1A40mm
Ronin Automatic40mm
Power Reserve
1A—
Ronin Automatic—
Water Resistance
1A200m
Ronin Automatic100m
MSRP
1A$223
Ronin Automatic$380

Full specifications

Case

5 specs
Category
Diver
—
Thickness
12.8mm
0mm
Lug-to-Lug
46mm
0mm
Lug Width
20mm
0mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
—
Dial Color
White/Blue
—
Lume
Swiss blue lume
None

Pricing

1 specs
MSRP
$223
$380
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