Side by side

Sugess Tourbillon Master SU8230vsYema Navygraf Marine Nationale CMM.10

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

Tourbillon Master SU8230
SugessTourbillon Master SU8230
MSRP $1,399
Navygraf Marine Nationale CMM.10
YemaNavygraf Marine Nationale CMM.10
MSRP $1,614

At a glance

11 of 29 specs differ
Diameter
Tourbillon Master SU823041mm
Navygraf Marine Nationale CMM.1039mm
Power Reserve
Tourbillon Master SU823040h
Navygraf Marine Nationale CMM.1040h
Water Resistance
Tourbillon Master SU823050m
Navygraf Marine Nationale CMM.10100m
MSRP
Tourbillon Master SU8230$1,399
Navygraf Marine Nationale CMM.10$1,614

Full specifications

Case

6 specs
Category
Chronograph
Diver
Diameter
41mm
39mm
Lug Width
11mm
19mm
Material
Yellow Gold/Rose Gold/Bronze
316L Stainless Steel
Water Resistance
50m
100m
Caseback
Display
Solid

Crystal & Dial

1 specs
Crystal
Sapphire
Domed Sapphire

Movement

3 specs
Caliber
Seagull ST8230
Yema CMM.10
Beat Rate
3 vph
28,800 vph
Complications
GMT, Moonphase, Date
None

Pricing

1 specs
MSRP
$1,399
$1,614

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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.

Sugess Tourbillon Master SU8230

Owners widely praise the Sugess Tourbillon Master for its stunning enamel dial and impressive finishing at its price point. Accuracy figures vary, with one owner reporting -12s/day and another +6 to +11s/day. Caveats include a cumbersome winding crown, limited 50m water resistance, a 21mm lug width, and a non-hacking movement, with one owner noting a power reserve around two days and noticeable resistance when winding. On balance, owners rate the Sugess Tourbillon Master highly for its visually striking dial and finishing, which significantly elevates its perceived value.

Yema Navygraf Marine Nationale CMM.10

The Yema Navygraf Marine Nationale CMM.10 is lauded for its vibrant blue dial and bezel, a slimmer 39mm case at 11mm thick, and its in-house CMM.10 caliber offering a 70-hour power reserve. Reviewers highlight the clean, legible dial, blue sapphire bezel insert, and competitive pricing under $2,000. However, the steel bracelet's clasp is noted by multiple sources as rattly and feeling slightly cheap, with one reviewer finding it difficult to open. Accuracy is reported within a range of +5/-3 seconds per day. Overall, reviewers praise the Yema Navygraf Marine Nationale CMM.10 for its attractive design and value proposition, tempered by minor concerns regarding the bracelet clasp.

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