Side by side
Seiko Prospex Marinemaster Marinemaster 1968 Heritage Diver's WatchvsHemel HFC Mechanical Chronograph
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
16 of 29 specs differDiameter
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch42.6mm
HFC Mechanical Chronograph40mm
Power Reserve
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch72h
HFC Mechanical Chronograph40h
Water Resistance
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch300m
HFC Mechanical Chronograph100m
MSRP
Prospex Marinemaster Marinemaster 1968 Heritage Diver's Watch$3,600
HFC Mechanical Chronograph$550
Full specifications
Case
6 specsCategory
Diver
Chronograph
Diameter
42.6mm
40mm
Thickness
14.1mm
13.4mm
Lug-to-Lug
49.3mm
47mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
100m
Crystal & Dial
5 specsCrystal
Sapphire
Domed Sapphire
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Dial Color
Black
Airfoil (1970s British Pilot)
Lume
LumiBrite on hands, index(es) and bezel
None
Movement
4 specsCaliber
8L45
Seagull ST19
Type
Automatic
Manual
Power Reserve
72h
40h
Jewels
35
25
Pricing
1 specsMSRP
$3,600
$550
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