Bamford of London GMT Forged CarbonvsSeiko Prospex Land Mechanical GMT

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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 GMT Forged Carbon at true scale

GMT Forged Carbon

Seiko Prospex Land Mechanical GMT at true scale

Prospex Land Mechanical GMT

Diameter

40mm

39.5mm

Lug-to-Lug

46.5mm

46.4mm

lowest

Thickness

11.7mm

lowest

13.6mm

Water Resistance

100m

200m

highest

Power Reserve

56h

72h

highest

MSRP

$2,050

$1,150

lowest

Movement

Sellita SW330-2

Seiko 6R54

Case

5 specs
Diameter
40mm
39.5mm
Thickness
11.7mm
13.6mm
Lug-to-Lug
46.5mm
46.4mm
Material
Carbon
Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

4 specs
Crystal Shape
n/a
Curved
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Sellita SW330-2
Seiko 6R54
Power Reserve
56h
72h
Jewels
25
24

Pricing

1 specs
MSRP
$2,050
$1,150
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Reviews

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

Bamford of London GMT Forged Carbon

The Bamford London GMT Forged Carbon is widely praised for its spectacular forged carbon case, which owners find light, visually attractive, and even better in person and sunlight. Reviewers highlight its legible, retro-future design with a restrained visual execution, particularly noting the contrast of colors against a matte black dial. Owners report it wears comfortably at under 12mm thick with a 47mm lug-to-lug measurement, and a real-world power reserve of around 53 hours. Some owners note the bezel markers are slightly oversized, and one owner found the internal bezel setting requires removing the watch from the wrist, while others report the bezel's 6/18 split was not centered, though some defend this as typical for GMTs. Overall, owners and reviewers rate the Bamford London GMT Forged Carbon highly for its unique forged carbon case and legible, well-executed dial design.

Seiko Prospex Land Mechanical GMT

Owners widely praise the Seiko Prospex Land Mechanical GMT for its faithful reconstruction of the 6117 design, its attractive gray dial, and comfortable bracelet. Reviewers highlight its handsome everyday sports watch appeal and classic Seiko diver aesthetics. However, community members are split on the value proposition, with many deeming it overpriced at $970, suggesting a better price point around $700 or on sale. Some owners criticize the 6R54 movement's accuracy, reporting deviations of up to +/- 20 seconds per day, and prefer a local jumping GMT function over the caller style. On balance, owners and reviewers appreciate the Seiko Prospex Land Mechanical GMT's design and wearability, but opinions are divided on its price and movement performance relative to alternatives.

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