CWC 6BB-WRvsSeiko Prospex Speedtimer Mechanical Chronograph

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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.

CWC 6BB-WR at true scale

6BB-WR

Seiko Prospex Speedtimer Mechanical Chronograph at true scale

Prospex Speedtimer Mechanical Chronograph

Diameter

42mm

42mm

Lug-to-Lug

49mm

lowest

49.5mm

Thickness

14.9mm

14.6mm

lowest

Water Resistance

100m

100m

Power Reserve

n/a

45h

MSRP

$2,858

$2,500

lowest

Movement

Sellita SW510

Seiko 8R48

Case

2 specs
Thickness
14.9mm
14.6mm
Lug-to-Lug
49mm
49.5mm

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 SW510
Seiko 8R48
Power Reserve
0h
45h
Jewels
0
34

Pricing

1 specs
MSRP
$2,858
$2,500
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Reviews

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

CWC 6BB-WR

Owners widely praise the CWC (Cabot Watch Company) 6BB-WR for its faithful pilot chronograph design and modern durability, with reviewers noting its crisp and confidence-inspiring chronograph operation. Some find the 14.9mm thickness and 80g weight make the 42mm case wear large, though the 49mm lug-to-lug aids wearability, and the cam-lever chronograph action is considered less satisfying than a column wheel, with fixed bars limiting strap options. Overall, owners and reviewers rate the CWC (Cabot Watch Company) 6BB-WR highly for its practical, affordable, and serviceable tool watch nature.

Seiko Prospex Speedtimer Mechanical Chronograph

The Seiko Prospex SPEEDTIMER Mechanical Chronograph is praised for its handsome, heritage-inspired design and clean, balanced dial layout, enhanced by an external tachymeter bezel. Reviewers note the adequate caliber 8R48 movement, which features a vertical clutch and column wheel with MEMS technology for durability and precision. The refined bracelet offers improved comfort, and the overall package is considered good value for a well-designed chronograph with an in-house movement. Points to consider include the 4:30 date window and a thickness of 14.6mm, while the 45-hour power reserve is an area for potential improvement. On balance, reviewers rate the Seiko Prospex SPEEDTIMER Mechanical Chronograph highly for its attractive design and solid chronograph functionality at its price point.

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