Side by side

Sartory Billard SB05vsSpinnaker Dumas GMT

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

Dumas GMT
SpinnakerDumas GMT
MSRP $399

At a glance

12 of 29 specs differ
Diameter
SB0538.5mm
Dumas GMT44mm
Power Reserve
SB0590h
Dumas GMT40h
Water Resistance
SB0550m
Dumas GMT300m
MSRP
SB05
Dumas GMT$399

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
38.5mm
44mm
Thickness
8.5mm
15mm
Lug-to-Lug
45.5mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

3 specs
Caliber
LJP Cal. 7380
Seiko NH34A
Type
Manual
Automatic
Power Reserve
90h
40h

Pricing

1 specs
MSRP
$399

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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.

Sartory Billard SB05

The dial's Maki-e Raden and aventurine combination is a standout feature. The 38.5mm case size and slim profile are noted for comfort.

Spinnaker Dumas GMT

Owners praise the Spinnaker Dumas GMT's satisfying lume, including on the crown, and good finishing, with one owner finding it wears well on a 17cm wrist. The watch features a Seiko NH34A GMT movement and a blue gradient dial. Reviewers note its 44mm diameter and 209g weight on the bracelet make it unsuitable for smaller wrists.

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