Side by side

Omega Constellation Observatory Co Axial Master Chronometer 39 4mmvsGrand Seiko SBGR261

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.

Omega Constellation Observatory Co Axial Master Chronometer 39 4mm

Owners widely praise the Omega Constellation Observatory Co Axial Master Chronometer 39 4mm for its fantastic presence and discreet elegance, finding it suitable for both suits and casual wear. Reviewers highlight its reinterpretation of vintage design with a pie-pan dial, dog-leg lugs, and kite-shaped hands and indexes, noting its certification as a Master Chronometer. Some owners find the case thick and the lugs awkward, while others prefer its clean design and unique details over other models. One owner wishes to switch straps but notes Omega does not sell alternatives. On balance, owners and reviewers appreciate the Omega Constellation Observatory Co Axial Master Chronometer 39 4mm for its elegant design and Master Chronometer certification, despite some reservations about case thickness and lug design.

Grand Seiko SBGR261

Grand Seiko SBGR261 owners praise its perfect 39.5mm dimensions, beautiful cream lacquered dial with a silver date disc, and blued second hand, noting the excellent finishing for its price point and its suitability for formal events. Some find the design too safe and the cream dial with leather strap less appealing, while others flag its over 13mm thickness as too tall for a dress watch. The movement finishing is described as rudimentary, though the 9S65 automatic is considered well-made and a terrific value. Overall, owners rate the Grand Seiko SBGR261 highly for its classic design and excellent finishing at its price.

At a glance

15 of 29 specs differ
Diameter
Constellation Observatory Co Axial Master Chronometer 39 4mm39.4mm
SBGR26139.5mm
Power Reserve
Constellation Observatory Co Axial Master Chronometer 39 4mm60h
SBGR26172h
Water Resistance
Constellation Observatory Co Axial Master Chronometer 39 4mm30m
SBGR26130m
MSRP
Constellation Observatory Co Axial Master Chronometer 39 4mm$37,900
SBGR261$4,900

Full specifications

Case

6 specs
Diameter
39.4mm
39.5mm
Thickness
12.23mm
13.1mm
Lug-to-Lug
47.2mm
46.9mm
Material
18kt Moonshine Gold
Stainless Steel
Finish
O-MEGASTEEL
Brushed and polished
Caseback
Solid

Crystal & Dial

4 specs
Crystal Shape
Domed
Flat
AR Coating
Yes
Dial Color
Silver
Black
Indices
Applied

Movement

4 specs
Caliber
Omega 8914
9S65
Beat Rate
0 vph
28,800 vph
Power Reserve
60h
72h
Jewels
0
25

Pricing

1 specs
MSRP
$37,900
$4,900
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