Side by side
Aera Instruments M-1vsTissot Gentleman Open Heart
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
14 of 29 specs differDiameter
M-139mm
Gentleman Open Heart40mm
Power Reserve
M-142h
Gentleman Open Heart80h
Water Resistance
M-1100m
Gentleman Open Heart100m
MSRP
M-1—
Gentleman Open Heart$1,025
Full specifications
Case
5 specsCategory
—
Chronograph
Diameter
39mm
40mm
Thickness
13.14mm
11.5mm
Lug-to-Lug
47.6mm
40mm
Lug Width
20mm
21mm
Crystal & Dial
5 specsCrystal Shape
Flat
Domed
AR Coating
Inner
Yes
Dial Color
Dune
Silver
Indices
Applied
Indexes
Lume
Super-LumiNova
Super-LumiNova ®
Movement
3 specsCaliber
Sellita SW216-1
11 1/2'''
Type
Manual
Automatic
Power Reserve
42h
80h
Pricing
1 specsMSRP
—
$1,025
Follow this matchup
Get a note when Aera Instruments M-1 vs Tissot Gentleman Open Heart 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.
CWC Cabot Steel Limited Edition WatchvsTissot Gentleman Open HeartFarer Lethbridge GoldvsTissot Gentleman Open HeartFarer CUSHION CASEvsTissot Gentleman Open HeartTissot Gentleman Open HeartvsAevig THOR manualwind dresswatchAera Instruments M-1vsSpinnaker Croft 42 SkeletonAera Instruments M-1vsMaen Manhattan 40 MSD