Side by side
Boldr BlastoisevsTudor Black Bay 58
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Blastoise40mm
Black Bay 5839mm
Power Reserve
Blastoise40h
Black Bay 5865h
Water Resistance
Blastoise200m
Black Bay 58200m
MSRP
Blastoise$449
Black Bay 58$5,350
Full specifications
Case
5 specsDiameter
40mm
39mm
Thickness
12mm
11.7mm
Lug-to-Lug
49.5mm
46mm
Finish
Brushed and polished
Polished + Satin
Caseback
Solid
Solid screw-down
Crystal & Dial
4 specsCrystal Shape
Flat
—
AR Coating
Inner
—
Dial Color
Blastoise
Black
Lume
Super-LumiNova
None
Movement
6 specsCaliber
Seiko (SII) NH37
MT5400-U
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
65h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Pricing
1 specsMSRP
$449
$5,350
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