lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Diver under $2,000·Dress under $5,000·Chronograph under $5,000·Best sport watches·GMT under $5,000·Field under $500·Pilot under $2,000·Casual under $1,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Loading watch
Home/Browse/Seestern/MoonPhase Master Automatic SU2528STRB V3
SpecStudio
Seestern MoonPhase Master Automatic SU2528STRB V3
Click to inspect
Seestern · MoonPhase Master

Seestern MoonPhase Master Automatic SU2528STRB V3

$210In stock

Case

Diameter
41mm
Thickness
13.5mm
Material
Stainless Steel
Water resistance
50m

Crystal & dial

Crystal
Sapphire

Movement

Caliber
Seagull ST2528
Type
Automatic

Seagull

Seagull's complicated automatic caliber featuring moonphase and day-date displays in a single movement. At 6.8mm thick it accommodates the additional moonphase disc mechanism atop the base automatic platform. The 27-jewel count reflects the added complexity, and the moonphase display adds a touch of haute horlogerie to watches priced in the budget segment. Represents the most complicated mass-produced Seagull movement currently available.

Design language

Case shape
round
Dial style
textured
Sub-dials
1
Bezel
smooth_polished
Bracelet
metal_jubilee
Moonphase
Yes

AI-detected from the product image

MoonPhase Master collection · 9 watches

MoonPhase Master Automatic S395.01 .S
MoonPhase Master Automatic S395.01 .S41mm
MoonPhase Master Automatic S401C.E
MoonPhase Master Automatic S401C.E41mm
MoonPhase Master Automatic S437-2
MoonPhase Master Automatic S437-241mm
MoonPhase Master Automatic S437-2.SW
MoonPhase Master Automatic S437-2.SW41mm
MoonPhase Master Automatic S437.05
MoonPhase Master Automatic S437.0541mm
MoonPhase Master Automatic SU2153SW.S
MoonPhase Master Automatic SU2153SW.S40mm
MoonPhase Master Automatic SU2528GW
MoonPhase Master Automatic SU2528GW41mm
MoonPhase Master Automatic SU2528STRA V3
MoonPhase Master Automatic SU2528STRA V341mm
Alternatives

Market

Retail$210

No forum listings recorded for this watch yet.

Similar watches

Orient Star Mechanical Moon Phase

Orient Star

Mechanical Moon Phase

41mm · Automatic$1,590

Baume & Mercier Classima Small Seconds

Baume & Mercier

Classima Small Seconds

42mm · Automatic

Selten 00.00

Selten

00.00

40mm · Automatic$699

SYE Watches SYE MOT1ON Automatic 24

SYE Watches

SYE MOT1ON Automatic 24

40.5mm · Automatic$922

Charlie Paris Watches ALLIANCE - Phase de Lune (39.5mm steel automatic)

Charlie Paris Watches

ALLIANCE - Phase de Lune (39.5mm steel automatic)

39.5mm · Automatic$2,445

Direnzo Watches DRZ Type 250F

Direnzo Watches

DRZ Type 250F

40mm · Automatic

View all alternatives

Community

“
Summary

The Seestern MoonPhase Master Automatic SU2528STRB V3 is an automatic watch, with a 41mm stainless steel case, 13.5mm thick, powered by the Seagull ST2528 movement. Water resistance is rated to 50m, under a sapphire crystal. Manufacturer MSRP is $210.

Open the discussion

On real wrists

No shots yet. Show how it wears.

Related

Ask the communityStart a discussion about the MoonPhase Master Automatic SU2528STRB V3: get takes from other collectors.Ask →

Discussion