Side by side

Bell & Ross BR-X3 Blue SteelvsSeiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

BR-X3 Blue Steel
Bell & RossBR-X3 Blue Steel
MSRP $7,992

At a glance

19 of 29 specs differ
Diameter
BR-X3 Blue Steel41mm
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch39.5mm
Power Reserve
BR-X3 Blue Steel70 hoursh
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch45h
Water Resistance
BR-X3 Blue Steel100m
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch200m
MSRP
BR-X3 Blue Steel$7,992
Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch$2,800

Full specifications

Case

8 specs
Category
Sport
Diver
Diameter
41mm
39.5mm
Thickness
13.3mm
12.3mm
Lug-to-Lug
47.2mm
Lug Width
20mm
Finish
Brushed and polished
Water Resistance
100m
200m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Box
AR Coating
Underside
Anti-reflective coating on inner surface
Dial Color
White
Black
Indices
Applied indices
Applied
Lume
Super-LumiNova
LumiBrite on hands, index(es) and bezel

Movement

5 specs
Caliber
BR-CAL.323
6L37
Beat Rate
28,800 vph
Power Reserve
70 hoursh
45h
Jewels
26
Complications
Hours/Minutes, Seconds, Power Reserve Indicator
None

Pricing

1 specs
MSRP
$7,992
$2,800

Follow this matchup

Get a note when Bell & Ross BR-X3 Blue Steel vs Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

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

Bell & Ross BR-X3 Blue Steel

The Bell & Ross BR-X3 Blue Steel is noted for its integration of the Kenissi movement into the BR-03 case, featuring a layered dial with a reoriented power reserve indicator. Owners find the lume bright, though less so in person than in images, and appreciate the comfort and unique dial variations, viewing it as an experimental piece. Reviewers note the three-date window is less clear than a single date display and find the blue dial's shininess excessive.

Seiko Prospex Marinemaster Marinemaster 1965 Heritage Diver's Watch

The Seiko Prospex Marinemaster 1965 Heritage Diver's Watch is praised for its faithful re-creation of the 62MAS design, with reviewers noting improved wearability due to smaller case sizes (38mm to 40mm) and updated bracelets. Specific models feature a stainless steel case with super-hard coating, ceramic bezel, and a tool-free extension system on the bracelet. Accuracy figures vary, with one model rated at -5/+10 seconds per day and another at -10/+15 seconds per day, powered by movements like the Caliber 8L45 or 6L37 offering 72-hour or 46-hour power reserves respectively. Some reviewers point out drawbacks such as an unsigned winding crown, a lack of tool-free micro-adjust on the clasp for certain models, and a secondary GMT function on one variant. The price point, ranging from $2,800 to $3,600, is considered high by some, especially when compared to other Seiko or Grand Seiko offerings.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.