Bamford of London B80 Modern NavyvsSeiko 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.
B80 Modern Navy
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
$950
$315
lowest
Movement
Sellita SW300-1
Seiko 4R36
Case
4 specsCrystal & Dial
4 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Bamford of London B80 Modern Navy is recognized for its 39mm matte bead-blasted titanium case and 100m water resistance. Reviewers highlight the Sellita SW300-1 automatic movement as a strong point, offering a modern, casual aesthetic with a grained dial and applied luminous markers. One variant features a unique dial with twelve pennant-shaped segments spelling out the hours. Overall, reviewers praise the Bamford of London B80 Modern Navy as a well-proportioned, fairly priced field watch with a classic design.
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.
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