Side by side
Boldr BlastoisevsSeiko Prospex Land Mechanical GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Blastoise40mm
Prospex Land Mechanical GMT39.5mm
Power Reserve
Blastoise40h
Prospex Land Mechanical GMT72h
Water Resistance
Blastoise200m
Prospex Land Mechanical GMT200m
MSRP
Blastoise$449
Prospex Land Mechanical GMT$1,150
Full specifications
Case
4 specsCategory
Diver
GMT
Diameter
40mm
39.5mm
Thickness
12mm
13.6mm
Lug-to-Lug
49.5mm
46.4mm
Crystal & Dial
4 specsCrystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Blastoise
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)
Movement
3 specsCaliber
Seiko (SII) NH37
6R54
Power Reserve
40h
72h
Jewels
25
24
Pricing
1 specsMSRP
$449
$1,150
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