Jaeger-LeCoultre Master Ultra Thin Moon 36 mm — release discovery
Short overview, not a review. Pros and cons restate published facts only. No buying advice. Numbers not shown on a source we opened are omitted or marked unpublished.
Jaeger-LeCoultre’s Singapore page lists the Master Ultra Thin Moon, internal reference “JLQ1242521 (Q1242521)”, at S$32,200 including taxes. The case lines are “Diameter: 36 mm” and “Thickness: 9.34mm”. The page calls it “THE QUINTESSENTIAL DRESS WATCH”, with a moon phase (a display of the moon’s phase).
Verified specs
| Item | Published | Source |
|---|---|---|
| Reference | “REF. Q1242521”. Internal reference “JLQ1242521 (Q1242521)”. The page tags it “New”. | Jaeger-LeCoultre Singapore |
| Price | “32200” “S$”, labelled “Price including taxes” (S$32,200). | Jaeger-LeCoultre Singapore |
| Case | “Pink gold 750/1000 (18 carats)” (18k gold). “Diameter: 36 mm”. “Thickness: 9.34mm”. The description calls it “this rose gold model”. | Jaeger-LeCoultre Singapore |
| Lug-to-lug | Jaeger-LeCoultre’s Singapore page for Q1242521 doesn’t list lug-to-lug. | Jaeger-LeCoultre Singapore |
| Lug width | “Lug width: 17mm”. | Jaeger-LeCoultre Singapore |
| Water resistance | “5 bar”. | Jaeger-LeCoultre Singapore |
| Dial | “Gilt hour-markers, Silvered grey, sunray-brushed”. The design text says “a polished pink gold-coloured moon and stars against a deep midnight blue sky”. | Jaeger-LeCoultre Singapore |
| Hands | “Dauphines” and “Baguette” (hand shapes). | Jaeger-LeCoultre Singapore |
| Movement | Automatic Calibre 925, “4.9mm” thick, 70-hour power reserve. The page also prints “Jaeger-LeCoultre Caliber 925”, “Automatic winding”, “28800” vibrations per hour, frequency “4”, “245” components, “30” jewels, and “1” barrel. | Jaeger-LeCoultre Singapore |
| Functions | “Hour - Minute, Date a aiguille, Seconds, Moon phase”. The design text calls the date a “pointer date” (date a aiguille: a date shown by a hand). | Jaeger-LeCoultre Singapore |
| Strap and buckle | Black alligator (“Alligator large scales”, “Color: Black”), “75mm” at 12h and “115mm” at 6h, “Crafted with quick-release technology for seamless strap interchangeability”. The “Pin buckle” is “Pink Gold 750/1000 (18 carats)”, “Buckle width: 16mm”. | Jaeger-LeCoultre Singapore |
| Manufacture | “Designed, manufacture and assembled under one roof at Jaeger-LeCoultre’s Manufacture in Le Sentier”. The page also names “1,000 Hour Control” (Jaeger-LeCoultre’s internal certification testing). | Jaeger-LeCoultre Singapore |
Jaeger-LeCoultre’s Singapore page for Q1242502 lists “36 mm Automatic Pink Gold Moon Phase Watch”, “Diameter: 36 mm”, “Thickness: 9.4mm”, “Price available upon request”, “its bezel set with brilliant-cut diamonds” (“Type: Diamond”, “Quantity: 56”, “Carats: 0.79”).
Fit on 6–7 in wrists (6.5 in reference)
Fit: Incomplete (lug-to-lug unpublished).
Jaeger-LeCoultre’s Singapore page for Q1242521 doesn’t list lug-to-lug, so the fit checker leaves the Master Ultra Thin Moon Incomplete.
Singapore note
The authorised dealers guide lists Jaeger-LeCoultre. Watches are not subject to customs duty in the usual consumer path (see Buying in Singapore).