Side by side

Bell & Ross BR-X2 tourbillon skeleton micro rotorvsMarathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

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

BR-X2 tourbillon skeleton micro rotor
Bell & RossBR-X2 tourbillon skeleton micro rotor
MSRP $74,520
JDD (Jumbo Day/Date) Anthracite Diver's Automatic
MarathonJDD (Jumbo Day/Date) Anthracite Diver's Automatic
MSRP $3,250

At a glance

20 of 29 specs differ
Diameter
BR-X2 tourbillon skeleton micro rotor42.5mm
JDD (Jumbo Day/Date) Anthracite Diver's Automatic46mm
Power Reserve
BR-X2 tourbillon skeleton micro rotor
JDD (Jumbo Day/Date) Anthracite Diver's Automatic40h
Water Resistance
BR-X2 tourbillon skeleton micro rotor50m
JDD (Jumbo Day/Date) Anthracite Diver's Automatic300m
MSRP
BR-X2 tourbillon skeleton micro rotor$74,520
JDD (Jumbo Day/Date) Anthracite Diver's Automatic$3,250

Full specifications

Case

9 specs
Category
Skeleton
Diver
Diameter
42.5mm
46mm
Thickness
18mm
Lug-to-Lug
55mm
Lug Width
22mm
Material
Stainless Steel
316L Stainless Steel (Anthracite IP)
Finish
Brushed and polished
Water Resistance
50m
300m
Caseback
Solid

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Underside
Inner
Dial Color
Skeleton
Anthracite
Indices
Applied indices
Applied
Lume
Super-LumiNova
None

Movement

5 specs
Caliber
BR-CAL.381
Sellita SW220-1
Beat Rate
28,800 vph
Power Reserve
40h
Jewels
25
Complications
Hours/Minutes, Tourbillon
None

Pricing

1 specs
MSRP
$74,520
$3,250

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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-X2 tourbillon skeleton micro rotor

The Bell & Ross BR-X2 tourbillon skeleton micro rotor is praised for its novel design, integrating the case and movement into a single sapphire crystal structure. Owners find the 42.5mm watch comfortable for daily wear and note its masculine appeal. Reviewers flag that the satin-finished hands can blend too much with the dial, impacting legibility.

Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic

Owners widely praise the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic as a tough, underrated tool watch with lifestyle appeal, highlighting its robust build and tritium lume for excellent legibility. However, its 46mm size is a common criticism, with some finding it heavy and top-heavy, and the OEM rubber strap stiff. One owner noted the watch runs about 10 seconds fast after three days, and the ETA 2836-2 movement offers approximately two days of power reserve. On balance, owners and reviewers rate the Marathon JDD (Jumbo Day/Date) Anthracite Diver's Automatic highly for its robust tool-watch build and legibility, despite its substantial size.

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