Side by side

AVI-8 Spitfire Lock ChronographvsGrand Seiko SBGM221

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
SBGM221
Grand SeikoSBGM221
MSRP $5,400

At a glance

14 of 29 specs differ
Diameter
Spitfire Lock Chronograph42mm
SBGM22139.5mm
Power Reserve
Spitfire Lock Chronograph40h
SBGM22172h
Water Resistance
Spitfire Lock Chronograph50m
SBGM22130m
MSRP
Spitfire Lock Chronograph$260
SBGM221$5,400

Full specifications

Case

7 specs
Category
Chronograph
GMT
Diameter
42mm
39.5mm
Thickness
13.7mm
Lug-to-Lug
46.9mm
Lug Width
22mm
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
30m

Crystal & Dial

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

Movement

3 specs
Caliber
9S66
Type
Quartz
Automatic
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$260
$5,400

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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 SBGM221

Grand Seiko SBGM221 is widely praised for its exceptional dial finish, highly polished hands and indices, and elegant design. Owners consistently highlight the stunning craftsmanship, with specific mention of the up to 11 hand-polished facets on its rectangular markers. The reliable 9S66 movement is noted for its 72-hour power reserve and true GMT functionality, tested beyond Chronometer specifications. Some enthusiasts desire a bidirectional 24-hour bezel, which the Grand Seiko SBGM221 lacks, and its 13.7mm thickness and 19mm lug width are noted as potential limitations. On balance, owners rate the Grand Seiko SBGM221 highly for its exquisite finishing and elegant, comfortable design.

From video reviewers

The SBGM221 is praised for its value within the Grand Seiko lineup. The lug width is cited as a weakness.

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