Side by side

AVI-8 Spitfire Lock ChronographvsPraesidus A-5 UDT

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

Spitfire Lock Chronograph
AVI-8Spitfire Lock Chronograph
MSRP $260
A-5 UDT
PraesidusA-5 UDT
MSRP $645

At a glance

11 of 29 specs differ
Diameter
Spitfire Lock Chronograph42mm
A-5 UDT38mm
Power Reserve
Spitfire Lock Chronograph40h
A-5 UDT40h
Water Resistance
Spitfire Lock Chronograph50m
A-5 UDT200m
MSRP
Spitfire Lock Chronograph$260
A-5 UDT$645

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
42mm
38mm
Thickness
12mm
Lug-to-Lug
50mm
Lug Width
22mm
20mm
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Mineral
Domed Sapphire
Dial Color
MIDNIGHT OAK
Blue

Movement

2 specs
Caliber
Miyota 9015
Type
Quartz
Automatic

Pricing

1 specs
MSRP
$260
$645

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

AVI-8 Spitfire Lock Chronograph

Owners widely report AVI-8 watches offer a compelling design and are decently well made for the price. The AVI-8 Spitfire Lock Chronograph features a 42mm stainless steel case with curved lugs, a bi-compax meca-quartz movement, and a mineral crystal, with design elements inspired by Supermarine Spitfires. One owner notes that AVI-8 watches are "something different" and "decently well made," though not of "insane quality." On balance, owners and reviewers appreciate the AVI-8 Spitfire Lock Chronograph for its unique design and value proposition.

Praesidus A-5 UDT

The Praesidus A-5 UDT is noted for its historically inspired design, featuring an oversized crown cap and chain that pays homage to WW2 canteen watches. Reviewers highlight its functional dial with embossed, Super-LumiNova filled numerals and markers for legibility, alongside 200m water resistance and a 38mm brushed stainless steel case. Some owners find the 11.7mm thickness problematic, describing it as disproportionately tall. The watch's ana/digi functionality and connection to special operations forces are also praised. On balance, owners and reviewers appreciate the Praesidus A-5 UDT for its unique historical design elements and functional dial.

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