Side by side

AVI-8 Spitfire Lock ChronographvsGrand Seiko SLGB005

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
SLGB005
Grand SeikoSLGB005
MSRP $11,100

At a glance

14 of 29 specs differ
Diameter
Spitfire Lock Chronograph42mm
SLGB00537mm
Power Reserve
Spitfire Lock Chronograph40h
SLGB00572h
Water Resistance
Spitfire Lock Chronograph50m
SLGB005100m
MSRP
Spitfire Lock Chronograph$260
SLGB005$11,100

Full specifications

Case

7 specs
Category
Chronograph
Dress
Diameter
42mm
37mm
Thickness
11.4mm
Lug-to-Lug
44.3mm
Lug Width
22mm
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

3 specs
Crystal
Mineral
Sapphire
AR Coating
Inner
Yes
Dial Color
MIDNIGHT OAK
Black

Movement

3 specs
Caliber
9RB2
Type
Quartz
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$260
$11,100

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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.

Grand Seiko SLGB005

The Grand Seiko SLGB005 is widely praised for its stunning "Ice Forest" smoked purple dial, inspired by frost-covered trees, and its compact 37mm Ever-Brilliant Steel case. It is powered by the 9RB2 Spring Drive caliber, noted for its exceptional accuracy of ±3 seconds per month or ±20 seconds per year, and offers a 72-hour power reserve. Reviewers consistently highlight the dial's mesmerizing beauty and the case's sculpted design as significant strengths. However, multiple sources express disappointment that the Grand Seiko SLGB005 omits the micro-adjustment clasp found on other models, especially considering its $11,100 price point, though one reviewer found this did not detract from wearability. Overall, reviewers rate the Grand Seiko SLGB005 highly for its visually arresting dial and precise Spring Drive movement, despite the clasp oversight.

From video reviewers

The watch features a ±3 seconds per month accurate Ultra Fine Accuracy Calibre 9RB2 movement. The Ever-Brilliant Steel finish has polishing flaws that detract from the watch's appearance. Reviewers disagree on the movement's accuracy, with one reviewer citing ±3 seconds per month and another ±10 seconds per month.

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