Blancpain BathyscaphevsRolex Deepsea

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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.

Blancpain Bathyscaphe at true scale

Bathyscaphe

Rolex Deepsea at true scale

Deepsea

Diameter

43mm

44mm

Thickness

13.4mm

n/a

Water Resistance

300m

3900m

highest

Power Reserve

120h

highest

70h

MSRP

$35,200

$15,550

lowest

Movement

1315

3235

Case

6 specs
Diameter
43mm
44mm
Thickness
13.4mm
n/a
Material
n/a
Oystersteel
Finish
n/a
n/a
Water Resistance
300m
3900m
Caseback
n/a
Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve

Crystal & Dial

4 specs
Crystal Shape
n/a
Flat
Dial Color
n/a
Black
Indices
n/a
Index
Lume
None
Chromalight

Movement

7 specs
Caliber
1315
3235
Beat Rate
0 vph
28,800 vph
Power Reserve
120h
70h
Jewels
0
31
Hacking
No
Yes
Hand-winding
No
Yes
Complications
None
Date

Pricing

1 specs
MSRP
$35,200
$15,550
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Reviews

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

Blancpain Bathyscaphe

The Blancpain Bathyscaphe is widely praised for its understated, light-playing dial and quiet quality finishing, offering a luxurious, under-the-radar alternative to other dive watches. Owners appreciate the minimal dial text and the movement's aesthetic. Some find the aesthetic underwhelming and the indices small, while others note a loud, clicky bezel action without play. One owner reported impressive accuracy of 0.1s/day, though another experienced issues with internal components requiring warranty service and a stiff sailcloth strap. Opinions are split on its aesthetics, with some finding it ugly and a poor value proposition given the price. Overall, owners and reviewers rate the Blancpain Bathyscaphe highly for its luxurious, understated finishing and appealing dial, despite some criticisms regarding aesthetics and bezel feel.

Rolex Deepsea

The Rolex Deepsea is widely seen as a substantial, well-built watch with impressive engineering. Owners and reviewers note its robust compression architecture and the caliber 3235 movement, certified to Rolex's stringent -2/+2 seconds per day standard. Some find the watch exceptionally comfortable on a Rubber B strap, while others appreciate its heft and balance on the bracelet. However, its large size and thickness are polarizing, with some finding it too big and heavy for smaller wrists or as a daily wearer, and a few consider it a showpiece rather than a practical tool unless one is a serious diver. Overall, owners and reviewers rate the Rolex Deepsea highly for its impressive engineering and robust build, despite its polarizing size and thickness.