Side by side

Hemel Sky Racer AutomaticvsSeiko Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

At a glance

14 of 29 specs differ
Diameter
Sky Racer Automatic43mm
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition42mm
Power Reserve
Sky Racer Automatic40h
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition45h
Water Resistance
Sky Racer Automatic50m
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition100m
MSRP
Sky Racer Automatic$700
Prospex SPEEDTIMER Seiko 145th Anniversary Limited Edition$2,500

Full specifications

Case

5 specs
Diameter
43mm
42mm
Thickness
16mm
14.6mm
Lug-to-Lug
49mm
49.5mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

5 specs
Crystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Panda
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
SL4617
8R48
Power Reserve
40h
45h
Jewels
25
34

Pricing

1 specs
MSRP
$700
$2,500

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