Bamford of London D-300 Gloss Navy White CeramicvsSeiko Prospex Sea

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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 D-300 Gloss Navy White Ceramic at true scale

D-300 Gloss Navy White Ceramic

Seiko Prospex Sea at true scale

Prospex Sea

Diameter

42mm

43.8mm

Lug-to-Lug

n/a

48.7mm

Thickness

13mm

12.8mm

lowest

Water Resistance

300m

highest

200m

Power Reserve

n/a

41h

MSRP

$1,800

$625

lowest

Movement

ETA 2824-2

Seiko 4R35

Case

5 specs
Diameter
42mm
43.8mm
Thickness
13mm
12.8mm
Lug-to-Lug
n/a
48.7mm
Material
Ceramic
Stainless Steel
Water Resistance
300m
200m

Crystal & Dial

3 specs
AR Coating
n/a
Anti-reflective coating on inner surface
Dial Color
n/a
n/a
Lume
None
LumiBrite on hands, index(es) and bezel

Movement

3 specs
Caliber
ETA 2824-2
Seiko 4R35
Power Reserve
0h
41h
Jewels
0
23

Pricing

1 specs
MSRP
$1,800
$625
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Reviews

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

Bamford of London D-300 Gloss Navy White Ceramic

Owners praise the Bamford D-300 Gloss Navy White Ceramic for its tactile bezel, legible dial, and premium feel, noting its ceramic and titanium construction and fun wrist presence. Some reviewers find it offers good value at under $2,000, while one owner considers its £1,800 price tag unjustifiable. Overall, owners and reviewers rate the Bamford D-300 Gloss Navy White Ceramic positively for its tactile bezel and premium feel at its price point.

Seiko Prospex Sea

The Seiko Prospex Sea is widely praised for its excellent value as a sport watch, with owners highlighting its comfortable wearability and generous lume. Reviewers note its solid build quality and attractive design, with some specifically mentioning the matte black dial as a strong point. One owner reports accuracy around +1 to +2 seconds per day. The 43.8mm case size is considered substantial by some, and one owner found the watch heavy and thick, regretting not choosing a different variant. Overall, owners and reviewers rate the Seiko Prospex Sea highly for its blend of classic design and modern utility at an accessible price point.