Bamford of London B80 AftershockvsSeiko Seiko 5 Sports Field series

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Measurements

Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Bamford of London B80 Aftershock at true scale

B80 Aftershock

Seiko Seiko 5 Sports Field series at true scale

Seiko 5 Sports Field series

Diameter

39mm

39.4mm

Lug-to-Lug

48mm

lowest

48.1mm

Thickness

10.5mm

lowest

13.2mm

Water Resistance

100m

100m

Power Reserve

56h

highest

41h

MSRP

$1,082

$315

lowest

Movement

Sellita SW300-1

Seiko 4R36

Case

4 specs
Diameter
39mm
39.4mm
Thickness
10.5mm
13.2mm
Lug-to-Lug
48mm
48.1mm
Material
Titanium
Stainless Steel

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
n/a
Curved
Dial Color
n/a
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW300-1
Seiko 4R36
Power Reserve
56h
41h
Jewels
0
24

Pricing

1 specs
MSRP
$1,082
$315
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Reviews

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

Bamford of London B80 Aftershock

The Bamford London B80 Aftershock is praised as a well-proportioned and fairly priced field watch with a modern, casual design. Reviewers highlight its matte-finished titanium case, measuring 39mm in diameter and 10.5mm in height, and its Sellita SW300-1 automatic movement. It offers 100m water resistance and a 56-hour power reserve. On balance, reviewers rate the Bamford London B80 Aftershock highly for its classic proportions and accessible price point.

Seiko 5 Sports Field series

The Seiko 5 Sports Field series is praised for its excellent legibility, featuring fully lumed Arabic numerals and a lumed pearl on the compass bezel. Reviewers note the reliable 4R36 movement and 10 bar water resistance, with some considering the watches good value under 500 euros. The GMT variants, specifically the SSK023 and SSK025, offer an accessible explorer watch with a GMT complication and a fixed 24-hour bezel. Overall, owners and reviewers rate the Seiko 5 Sports Field series highly for its legibility and value proposition.