Jaeger-LeCoultre Master Ultra Thin
More Jaeger-LeCoultre market data- Brand
- Jaeger-LeCoultre
- Model
- Master Ultra Thin
- Reference
- Q1378420
- Case
- 39 mm
- Dial
- silver
- Bracelet / strap
- leather
- Status
- Available
Watch listing
Jaeger-LeCoultre Master Ultra Thin
Jaeger-LeCoultre Master Ultra Thin listing with structured specifications, pricing, condition, and market context. Observed details include $8,000.
Updated Jun 12, 2026
![[WTS] JLC Master Ultra Thin Reserve De Marche Q1378420 Watch Collectors Kit image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tyulfo%2F0d24ee82e5c5e99cffec87b29b780d9b77c6ba3c116595f0223d04fe15ed6658.jpg&w=3840&q=75)
![[WTS] JLC Master Ultra Thin Reserve De Marche Q1378420 Watch Collectors Kit image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tyulfo%2F4d0db237f6c4f89c500b278fe2d73ea005ad953f8d6a1e8096c1c19803a9a82b.jpg&w=3840&q=75)
![[WTS] JLC Master Ultra Thin Reserve De Marche Q1378420 Watch Collectors Kit image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tyulfo%2Fa0e43ae10974bad2e3ead871c5587238c25640a86698a74b9950f083f5e4285f.jpg&w=3840&q=75)
![[WTS] JLC Master Ultra Thin Reserve De Marche Q1378420 Watch Collectors Kit image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tyulfo%2F8d41219f1066862caee7d100c290a63e752061490306e28fddd848c79f95945d.jpg&w=3840&q=75)
![[WTS] JLC Master Ultra Thin Reserve De Marche Q1378420 Watch Collectors Kit image](/_next/image?url=https%3A%2F%2Fmedia.watchtrader.net%2Fmedia%2Freddit-post-1tyulfo%2Fb1bc245bf5e106f39dca6a36043d6ed12d6e797a32b26d3ae2afa90e9f6f28a6.jpg&w=3840&q=75)
Observed asking price
$8,000
Status: Available
At a glance
- Listing type
- For sale
- First observed
- Jun 6, 2026
- Watches
- 1
- Photos
- 5
Structured details
Watch details
$8,000
Listing notes
[WTS] JLC Master Ultra Thin Reserve De Marche Q1378420 Watch Collectors Kit
Source and availability
Watchtrader structured this page from an observed Reddit community listing. Asking prices, condition, and availability can change after publication; verify the details with the original source before relying on them.
View original Reddit listingMore from this brand
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