Side by side

Rolex Cosmograph DaytonavsZenith Chronomaster Open

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

What people say

Owners + reviewers, side by side

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

Rolex Cosmograph Daytona

Owners widely praise the Rolex Cosmograph Daytona for its exceptional proportions and comfort on the wrist, with many finding its 40mm case and bracelet to be perfectly balanced and wearable. Reviewers note a tweaked dial for improved legibility and a new ceramic bezel with a steel ring on the ref. 126500. However, some owners find the watch underwhelming in person and criticize the sub-dial placement, screw-down pushers, and high market value, with one reviewer finding the retail price steep compared to other iconic chronographs. Accuracy figures vary, with some owners reporting superior accuracy and others noting a range from +1/+2 to about -6 seconds per day. On balance, owners and reviewers rate the Rolex Cosmograph Daytona highly for its wearability and refined finishing, despite some reservations about its value proposition.

From video reviewers

The 18k yellow gold case and Cerachrom bezel are frequently cited strengths. The Oysterflex bracelet also received multiple mentions.

Zenith Chronomaster Open

The open dial showcasing the El Primero movement is cited as a key feature. Reviewers did not reach a consensus on any weaknesses.

At a glance

19 of 29 specs differ
Diameter
Cosmograph Daytona40mm
Chronomaster Open39.5mm
Power Reserve
Cosmograph Daytona72h
Chronomaster Open60h
Water Resistance
Cosmograph Daytona100m
Chronomaster Open50m
MSRP
Cosmograph Daytona$16,900
Chronomaster Open$11,100

Full specifications

Case

8 specs
Diameter
40mm
39.5mm
Thickness
0mm
Lug-to-Lug
0mm
Lug Width
0mm
Material
Oystersteel
Stainless Steel
Finish
18 kt yellow gold
Water Resistance
100m
50m
Caseback
Monobloc middle case, screw-down case back and winding crown
Display

Crystal & Dial

4 specs
Crystal Shape
Flat
Dial Color
Turquoise
Silver
Indices
Index
Lume
Chromalight
None

Movement

6 specs
Caliber
4131
Zenith El Primero 3604
Beat Rate
28,800 vph
36,000 vph
Power Reserve
72h
60h
Jewels
47
0
Hacking
Yes
No
Hand-winding
Yes
No

Pricing

1 specs
MSRP
$16,900
$11,100
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