Side by side

Sugess MoonPhase Master SU2108vsLongines PrimaLuna

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

MoonPhase Master SU2108
SugessMoonPhase Master SU2108
MSRP $549
PrimaLuna
LonginesPrimaLuna
MSRP $2,950

At a glance

22 of 29 specs differ
Diameter
MoonPhase Master SU210840mm
PrimaLuna34mm
Power Reserve
MoonPhase Master SU210841h
PrimaLuna72h
Water Resistance
MoonPhase Master SU21085m
PrimaLuna30m
MSRP
MoonPhase Master SU2108$549
PrimaLuna$2,950

Full specifications

Case

9 specs
Category
Chronograph
Dress
Diameter
40mm
34mm
Thickness
11.5mm
11.6mm
Lug-to-Lug
46mm
41mm
Lug Width
20mm
8mm
Material
Stainless Steel/Gold
Stainless Steel
Finish
Polished
Water Resistance
5m
30m
Caseback
Display
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Both sides
Dial Color
S438 White
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
Seagull ST21
L899.5
Beat Rate
4 vph
25,200 vph
Power Reserve
41h
72h
Jewels
21
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Moonphase, Date
Hours, minutes, seconds and date, Moon phase display at 6 o'clock

Pricing

1 specs
MSRP
$549
$2,950

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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 MoonPhase Master SU2108

Owners widely praise the Sugess MoonPhase Master SU2108 for its gorgeous, affordable dress watch aesthetic, intricate dial details, and elegant rose gold finish. Reviewers note a well-decorated Seagull ST2108 movement averaging +7 seconds daily, a lumed moonphase, applied Roman numerals, and a multi-textured dial. However, some owners find the 40mm diameter and 50mm lug-to-lug too large for smaller wrists, and the polished blue hands can make quick time-telling difficult. Criticisms also include a date hand that obscures numerals, a domed sapphire crystal lacking AR coating, and stiff stock straps. On balance, owners rate the Sugess MoonPhase Master SU2108 highly for its elegant design and value in the affordable dress watch segment.

Longines PrimaLuna

Owners widely praise the Longines PrimaLuna for its stylish, understated design and comfortable 26.5mm and 34mm case sizes, with some preferring the quartz for its lower maintenance and others the automatic for its craftsmanship. The automatic movement, an L899.5 or Caliber L899, offers a 72-hour power reserve and exhibits consistent accuracy averaging a loss of 1.3 seconds per day in testing, though it runs 3-4 seconds slower on the wrist. The redesigned collection features a curvier case with contemporary lug integration and is available in steel or bi-metal. On balance, owners and reviewers appreciate the Longines PrimaLuna for its elegant styling and reliable automatic movement, though some find its brand prestige and design less compelling compared to certain luxury alternatives.

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