Side by side
Praesidus 38mm AutomaticvsTudor Black Bay 54
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
38mm Automatic38mm
Black Bay 5437mm
Power Reserve
38mm Automatic40h
Black Bay 5470h
Water Resistance
38mm Automatic100m
Black Bay 54200m
MSRP
38mm Automatic$680
Black Bay 54$4,725
Full specifications
Case
9 specsCategory
Field
Diver
Diameter
38mm
37mm
Thickness
11mm
11.2mm
Lug-to-Lug
45mm
46mm
Lug Width
18mm
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Polished + Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
38mm Automatic
Blue
Lume
None
Super-LumiNova
Movement
6 specsCaliber
Seiko NH35
MT5400
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$680
$4,725
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