Side by side
Duckworth Prestex Big Date AutomaticvsTissot Le Locle Open Heart
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Big Date Automatic39.5mm
Le Locle Open Heart39.3mm
Power Reserve
Big Date Automatic48h
Le Locle Open Heart80h
Water Resistance
Big Date Automatic30m
Le Locle Open Heart30m
MSRP
Big Date Automatic$975
Le Locle Open Heart$995
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
39.5mm
39.3mm
Thickness
14.6mm
9.75mm
Lug-to-Lug
46.5mm
39.3mm
Lug Width
20mm
19mm
Crystal & Dial
3 specsCrystal
Mineral
Sapphire
Dial Color
—
Silver
Indices
Applied
Roman
Movement
2 specsCaliber
—
11.5'
Power Reserve
48h
80h
Pricing
1 specsMSRP
$975
$995
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