Side by side
Aera Instruments M-1vsTudor Black Bay 58 18K
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
20 of 29 specs differDiameter
M-139mm
Black Bay 58 18K39mm
Power Reserve
M-142h
Black Bay 58 18K70h
Water Resistance
M-1100m
Black Bay 58 18K200m
MSRP
M-1—
Black Bay 58 18K$22,550
Full specifications
Case
7 specsCategory
—
Diver
Thickness
13.14mm
12.7mm
Lug-to-Lug
47.6mm
46mm
Material
Stainless Steel
18k Yellow Gold
Finish
Brushed and polished
Satin
Water Resistance
100m
200m
Caseback
Solid
Solid screw-down
Crystal & Dial
5 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Dune
Green
Indices
Applied
—
Lume
Super-LumiNova
None
Movement
7 specsCaliber
Sellita SW216-1
MT5400
Type
Manual
Automatic
Beat Rate
28,800 vph
0 vph
Power Reserve
42h
70h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
—
$22,550
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