Side by side
Aera Instruments M-1vsDan Henry 1975
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
M-139mm
197539mm
Power Reserve
M-142h
197540h
Water Resistance
M-1100m
1975150m
MSRP
M-1—
1975$310
Full specifications
Case
5 specsCategory
—
Diver
Thickness
13.14mm
10.5mm
Lug-to-Lug
47.6mm
42mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
150m
Crystal & Dial
2 specsDial Color
Dune
White
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW216-1
—
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
—
$310
Follow this matchup
Get a note when Aera Instruments M-1 vs Dan Henry 1975 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.












