Side by side

Aera Instruments M-1vsSeiko Alpinist

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

M-1
Aera InstrumentsM-1
Alpinist
SeikoAlpinist
MSRP $750

At a glance

13 of 29 specs differ
Diameter
M-139mm
Alpinist39.5mm
Power Reserve
M-142h
Alpinist70h
Water Resistance
M-1100m
Alpinist200m
MSRP
M-1—
Alpinist$750

Full specifications

Case

5 specs
Category
—
Field
Diameter
39mm
39.5mm
Thickness
13.14mm
13.2mm
Lug-to-Lug
47.6mm
46.4mm
Water Resistance
100m
200m

Crystal & Dial

3 specs
AR Coating
Inner
Anti-reflective coating on inner surface
Dial Color
Dune
Black
Lume
Super-LumiNova
LumiBrite on hands and index(es)

Movement

4 specs
Caliber
Sellita SW216-1
6R35
Type
Manual
Automatic
Power Reserve
42h
70h
Jewels
25
24

Pricing

1 specs
MSRP
—
$750

Follow this matchup

Get a note when Aera Instruments M-1 vs Seiko Alpinist gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

CWC Cabot Steel Limited Edition Watch
CWC

Cabot Steel Limited Edition Watch

Ref. cabot-steel
40mm·Manual
$1,583MSRP
—Used
Spinnaker Croft
Spinnakermicro

Croft

5 watches · 28 variantsCroft
40mm·Automatic·150m WR
$219MSRP
—Used
Farer Lethbridge Gold
Farer
Cushion Case

Lethbridge Gold

2 watches · 4 variantsCUSHION CASE
38.5mm
$1,085MSRP
—Used
Vaer D5 Meridian Auto
Vaermicro
Meridian

D5 Meridian Auto

6 watches · 23 variantsMeridian
39mm·Automatic·200m WR
$679MSRP
—Used
Aevig THOR manualwind dresswatch
Aevig

THOR manualwind dresswatch

Ref. thor
40mm·Manual·100m WR
$539MSRP
—Used
Astor + Banks Sea Ranger M2
Astor + Banksmicro

Sea Ranger M2

8 variantsSea Ranger
40mm·Automatic·300m WR
$1,149MSRP
—Used
Tornek-Rayville CISO M38 MAC V SOG
Tornek-Rayville

CISO M38 MAC V SOG

Ref. ciso-m38-mac-v-sog
38mm·Automatic·100m WR
$745MSRP
—Used
Geckota Sea-Hunter Dive Watch
Geckotamicro

Sea-Hunter Dive Watch

6 variantsSea-Hunter
40mm·Automatic·200m WR
$349MSRP
—Used
All alternatives to the M-1 →All alternatives to the Alpinist →
Explore the full catalog
Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

CWC Cabot Steel Limited Edition WatchvsSeiko AlpinistFarer Lethbridge GoldvsSeiko AlpinistFarer CUSHION CASEvsSeiko AlpinistSeiko AlpinistvsAevig THOR manualwind dresswatchAera Instruments M-1vsSpinnaker CroftAera Instruments M-1vsSpinnaker Croft Mid-Size Skeleton
Edit this comparisonAdd another watchExplore more 38–41mm watches