Side by side

AVI-8 Spitfire Lock ChronographvsUnimatic Modello Uno UT1-BSTN Collab Diver

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

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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.

Unimatic Modello Uno UT1-BSTN Collab Diver

The Unimatic Modello Uno UT1-BSTN Collab Diver is widely praised for its robust, tool-watch design and utilitarian features, including MIL-STD-810H shock resistance and individually pressure-tested cases. Reviewers highlight the sandblasted 41.5mm steel case with its masculine, monolithic feel and bold lugs, as well as the legible dial. The Seiko VH31 mecaquartz movement provides quartz accuracy with a sweeping seconds hand, and the watch boasts 300m water resistance. One reviewer notes a lack of contrast between the luminous indexes and the dial, and another points out the crystal's lack of AR-coating as a hint at its price point. Overall, reviewers rate the Unimatic Modello Uno UT1-BSTN Collab Diver highly for its rugged build and practical, entry-level tool watch appeal.

At a glance

11 of 29 specs differ
Diameter
Spitfire Lock Chronograph42mm
Modello Uno UT1-BSTN Collab Diver41.5mm
Power Reserve
Spitfire Lock Chronograph
Modello Uno UT1-BSTN Collab Diver
Water Resistance
Spitfire Lock Chronograph50m
Modello Uno UT1-BSTN Collab Diver300m
MSRP
Spitfire Lock Chronograph$260
Modello Uno UT1-BSTN Collab Diver$680

Full specifications

Case

7 specs
Category
Chronograph
Diameter
42mm
41.5mm
Thickness
12mm
0mm
Lug-to-Lug
50mm
0mm
Lug Width
22mm
0mm
Material
316L Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

2 specs
Crystal
Mineral
Dial Color
MIDNIGHT OAK
Black

Movement

1 specs
Caliber
Seiko VH31

Pricing

1 specs
MSRP
$260
$680
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