Side by side

Chronotechna NanoBlackvsSheffield 1A

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

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NanoBlack
ChronotechnaNanoBlack
1A
Sheffield1A
MSRP $223
Buy from Chronotechna ↗
Buy used on eBay ↗
Buy from Sheffield ↗
Buy used on eBay ↗

At a glance

11 of 29 specs differ
Diameter
NanoBlack42mm
1A40mm
Power Reserve
NanoBlack38h
1A—
Water Resistance
NanoBlack100m
1A200m
MSRP
NanoBlack—
1A$223

Full specifications

Case

6 specs
Category
—
Diver
Diameter
42mm
40mm
Thickness
11.65mm
12.8mm
Lug-to-Lug
47.90mm
46mm
Lug Width
22mm
20mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
White
White/Blue
Lume
None
Swiss blue lume

Movement

2 specs
Caliber
Sellita SW200-1
Seiko NH35A
Power Reserve
38h
—

Pricing

1 specs
MSRP
—
$223
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