Ming

17.09 GMT

Name: Ming 17.09 GMT 17.09
Brand: Ming
SKU: 17.09

Ref. 17.09

2021 · 38mm · caliber Ming Cal. 330.M1: Sellita SW330-2 base modified by Manufacture Schwarz-Etienne, automatic, 28,800bph, 42h PR, 25j; independently adjustable hour hand, so the time zone changes without disturbing the minutes

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Top-tier supplier movement · caliber Ming Cal. 330.M1: Sellita SW330-2 base modified by Manufacture Schwarz-Etienne, automatic, 28,800bph, 42h PR, 25j; independently adjustable hour hand, so the time zone changes without disturbing the minutes · 42h power reserve

Versatile size: fits most wrists (6–7.5 in / 15–19 cm)

38 mm case. The sweet spot for the broadest range of wrist sizes. Neither too dainty nor too bold.

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Authentication

MING 17.09 moonphase; inspect moonphase display accuracy and dial construction.

Known issues in the market

Moonphase display can drift if incorrectly set; verify seller set it accurately before purchase.

Area	What to check	What is correct	Red flag
dial	Moonphase display quality	Moonphase aperture clean with crisp moon disc, no scratches on the lunar display, stars visible and correctly placed	Scratched or damaged moon disc, lunar display that appears dirty or has debris behind the aperture
caseback	17.09 designation and serial	MING 17.09 moonphase designation, serial verifiable with community databases	Wrong designation, unverifiable serial
movement	Movement with moonphase module	Moonphase module visible and consistent with MING 17.09 specification	Movement that lacks moonphase module, movement swap evidence

Common legitimate replacements

Straps commonly replaced.

Expert resources: MING community databases for serial verification.

Authentication guide

Last reviewed June 2026

Ming 17.09 adds a moonphase complication to the 39mm case. Moonphase disc accuracy and applied index consistency are the combined authentication checks.

Known reproduction risks

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MEDIUM

Incorrect moonphase disc or non-original movement

Moon depiction quality lower than authentic reference images
Serial registry mismatch

Dial variants by era

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Era	Description	Identifiers
17.09 production	39mm with moonphase display, applied indices, Ming monogram at 6 o'clock.	Moonphase disc with detailed lunar depiction Moonphase aperture at 6 o'clock or lower dial half Applied indices consistent with other Ming references

Service part flags

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Moonphase disc

Original: High-detail moonphase disc, precisely regulated for approximately 29.5-day lunar cycle.

Replacement tells

Low-resolution or poorly printed moon depiction
Disc advances irregularly or in obvious steps
Aperture shape inconsistent with 17.09 specification

Indices

Original: Applied indices at consistent height and spacing.

Replacement tells

Height inconsistency under loupe
Printed rather than applied

Case back markings

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All production

Ming markings
Serial number
Movement caliber designation

Movement tells

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Moonphase complication advances once per 24 hours; the full cycle is approximately 29.5 days.
Set the moonphase per the reference instructions; it should track accurately against the lunar calendar.
Base movement beat rate as specified by the movement supplier.

Sources: Ming official.