Side by side
Praesidus 42mm AutomaticvsTudor Black Bay One 31 S&G
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
42mm Automatic38mm
Black Bay One 31 S&G31mm
Power Reserve
42mm Automatic40h
Black Bay One 31 S&G50h
Water Resistance
42mm Automatic100m
Black Bay One 31 S&G100m
MSRP
42mm Automatic$269
Black Bay One 31 S&G$6,850
Full specifications
Case
8 specsCategory
Field
—
Diameter
38mm
31mm
Thickness
11mm
9.5mm
Lug-to-Lug
45mm
46mm
Lug Width
18mm
17mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down
Crystal & Dial
1 specsDial Color
42mm Automatic
Black
Movement
2 specsCaliber
Seiko NH35
MT5201
Power Reserve
40h
50h
Pricing
1 specsMSRP
$269
$6,850
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