Side by side
Boldr BlastoisevsSmiths Armstrong Siddeley
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
11 of 29 specs differDiameter
Blastoise40mm
Armstrong Siddeley42mm
Power Reserve
Blastoise40h
Armstrong Siddeley—
Water Resistance
Blastoise200m
Armstrong Siddeley100m
MSRP
Blastoise$449
Armstrong Siddeley$980
Full specifications
Case
5 specsCategory
Diver
—
Diameter
40mm
42mm
Lug-to-Lug
49.5mm
52mm
Lug Width
20mm
22mm
Water Resistance
200m
100m
Crystal & Dial
2 specsDial Color
Blastoise
Cream
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Seiko (SII) NH37
Unitas 6498
Type
Automatic
Manual
Power Reserve
40h
—
Pricing
1 specsMSRP
$449
$980
More watches worth a look
Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.
Follow this matchup
Get a note when Boldr Blastoise vs Smiths Armstrong Siddeley gets more votes, a community discussion, or a price drop. No account needed.
People also compared
Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.
Boldr CharizardvsSmiths Armstrong SiddeleyBaltic Aquascaphe Dual-CrownvsSmiths Armstrong SiddeleyBaltic Aquascaphe ClassicvsSmiths Armstrong SiddeleyBaltic Aquascaphe BronzevsSmiths Armstrong SiddeleyBoldr BlastoisevsSmiths Armstrong Siddeley Richmond Spencer round smooth-bezel 3-hand, printed Roman numerals + small-secondsBoldr BlastoisevsSmiths Armstrong Siddeley Sewills Ferreira PRS-39 coin-edge/fluted-bezel onion-crown 3-hand, Roman numerals + small-seconds