Side by side
Hemel HFC Mechanical ChronographvsSeiko Prospex SPEEDTIMER
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
13 of 29 specs differDiameter
HFC Mechanical Chronograph40mm
Prospex SPEEDTIMER41.4mm
Power Reserve
HFC Mechanical Chronograph40h
Prospex SPEEDTIMER40h
Water Resistance
HFC Mechanical Chronograph100m
Prospex SPEEDTIMER100m
MSRP
HFC Mechanical Chronograph$550
Prospex SPEEDTIMER$750
Full specifications
Case
5 specsDiameter
40mm
41.4mm
Thickness
13.4mm
13mm
Lug-to-Lug
47mm
45.9mm
Lug Width
20mm
21mm
Material
316L Stainless Steel
Stainless Steel
Crystal & Dial
5 specsCrystal
Domed Sapphire
Sapphire
Crystal Shape
Flat
Curved
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Airfoil (1970s British Pilot)
Black
Lume
None
LumiBrite on hands and index(es)
Movement
2 specsCaliber
Seagull ST19
V192
Type
Manual
Quartz
Pricing
1 specsMSRP
$550
$750
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