Side by side

pOrtahl ZenmastervsSmiths Armstrong Siddeley

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

Add a watch
Zenmaster
pOrtahlZenmaster
MSRP $695
Armstrong Siddeley
SmithsArmstrong Siddeley
MSRP $980
Buy from pOrtahl ↗
Buy used on eBay ↗
Buy from Smiths ↗
Buy used on eBay ↗

At a glance

10 of 29 specs differ
Diameter
Zenmaster40.5mm
Armstrong Siddeley42mm
Power Reserve
Zenmaster42h
Armstrong Siddeley—
Water Resistance
Zenmaster100m
Armstrong Siddeley100m
MSRP
Zenmaster$695
Armstrong Siddeley$980

Full specifications

Case

5 specs
Diameter
40.5mm
42mm
Thickness
10.2mm
12mm
Lug-to-Lug
—
52mm
Lug Width
—
22mm
Material
316L Stainless Steel
Stainless Steel

Crystal & Dial

1 specs
Dial Color
—
Cream

Movement

3 specs
Caliber
Miyota 9015
Unitas 6498
Type
Automatic
Manual
Power Reserve
42h
—

Pricing

1 specs
MSRP
$695
$980
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.

Ergon Watches Adventum
Ergon Watchesmicro

Adventum

3 variantsRef. adventum-ss-blizzard
40mm·Automatic·100m WR
—MSRP
—Used
RGM Watches Model 150
RGM Watchesmicro

Model 150

Ref. model-150
42mm·Manual
$3,450MSRP
—Used
Hitori Nexus
Hitorimicro

Nexus

39.5mm·Automatic·100m WR
$940MSRP
—Used
Seiko Presage Inspired by Japanese Gardens
Seiko

Presage Inspired by Japanese Gardens

2 variantsPresage Inspired by Japanese Gardens
41.8mm·Automatic
$595MSRP
—Used
Aision Watch Co HANG
Aision Watch Comicro

HANG

23 variantsRef. hang-black-enamel-dial-lacquer
40mm·Automatic·100m WR
—MSRP
—Used
Hamilton Khaki Aviation Pilot Pioneer Mechanical Bronze
Hamilton

Khaki Aviation Pilot Pioneer Mechanical Bronze

2 variantsKhaki Aviation Pilot Pioneer Mechanical Bronze
43mm·Manual·100m WR
$1,795MSRP
—Used
Erebus Watches Ascent
Erebus Watchesmicro

Ascent

34/36/39/41mm
32 variantsRef. ascent-41-black-mother-of-pearl
34/36/39/41mm·Automatic·100m WR
—MSRP
—Used
Hamilton Khaki Field Mechanical Power Reserve
Hamilton

Khaki Field Mechanical Power Reserve

2 variantsKhaki Field Mechanical Power Reserve
40mm·Manual·100m WR
$1,025MSRP
—Used
All alternatives to the Zenmaster →All alternatives to the Armstrong Siddeley →
Explore the full catalog

Follow this matchup

Get a note when pOrtahl Zenmaster vs Smiths Armstrong Siddeley gets more votes, a community discussion, or a price drop. No account needed.

Adjacent matchups

People also compared

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

Ergon Watches AdventumvsSmiths Armstrong SiddeleyHitori NexusvsSmiths Armstrong SiddeleyAision Watch Co HANGvsSmiths Armstrong SiddeleyErebus Watches AscentvsSmiths Armstrong SiddeleypOrtahl ZenmastervsSmiths Armstrong Siddeley Richmond Spencer round smooth-bezel 3-hand, printed Roman numerals + small-secondspOrtahl ZenmastervsSmiths Armstrong Siddeley Sewills Ferreira PRS-39 coin-edge/fluted-bezel onion-crown 3-hand, Roman numerals + small-seconds
Edit this comparisonAdd another watchExplore more 39–43mm watches