Side by side
Hamilton Jazzmaster Auto ChronovsLum-Tec RPM
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Jazzmaster Auto Chrono42mm
RPM43mm
Power Reserve
Jazzmaster Auto Chrono60h
RPM40h
Water Resistance
Jazzmaster Auto Chrono100m
RPM50m
MSRP
Jazzmaster Auto Chrono$1,845
RPM$495
Full specifications
Case
6 specsDiameter
42mm
43mm
Thickness
14.83mm
12.3mm
Lug-to-Lug
46mm
41mm
Lug Width
22mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
100m
50m
Crystal & Dial
1 specsDial Color
Black
RPM 3
Movement
3 specsCaliber
H-31
—
Type
Automatic
Quartz
Power Reserve
60h
40h
Pricing
1 specsMSRP
$1,845
$495
Follow this matchup
Get a note when Hamilton Jazzmaster Auto Chrono vs Lum-Tec RPM gets more votes, a community discussion, or a price drop. No account needed.
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.









