Replica Jaeger-LeCoultre Master Ultra Thin Power Reserve Q1378421 Super Clone 39mm Silver Dial Stainless Steel Ultra Thin Dress Watch with Black Leather Strap
Movement
The Master Ultra Thin Power Reserve Q1378421 features an integrated automatic mechanical movement engineered for slim profile and reliable performance. It drives the core timekeeping functions along with a power reserve indicator, reflecting the precise architecture typical of Jaeger-LeCoultre’s ultra-thin calibres.
Type: Integrated automatic mechanical movement
Power Reserve: Approximately 36-40 hours
Frequency: 28,800 vibrations per hour (4 Hz)
Functions: Hours, minutes, seconds, date, and power reserve indicator
Winding: Automatic with bidirectional rotor

Case & Construction
The 39mm case made of stainless steel provides an opportunity to have a very thin watch with elegant proportions for both formal and informal occasions. The high-polish bezel combined with brushed finishing provides an elegant play of light and refined detailing, maintaining the elegance and lightness characteristic of the Master Ultra Thin collection.
Dial
The sunburst silver dial demonstrates a refined play of fine texture illuminated by light. Applied hour markers and hands provide excellent legibility, while the minimalist dial design reflects the classic aesthetic of Jaeger-LeCoultre dress watches.
Bezel
The stainless steel bezel features a high-polish finish that enhances the watch’s formal character and interacts elegantly with light. Its smooth, refined profile complements the ultra-thin case design without unnecessary bulk.
Strap
The black leather strap provides a supple, comfortable fit on the wrist with a classic dress-watch feel. It pairs perfectly with the stainless steel case, offering understated elegance and all-day wearability for formal occasions or business settings.
Specification Table
| Specification | Details |
|---|---|
| Model | Q1378421 |
| Case Diameter | 39mm |
| Case Material | Stainless steel |
| Thickness | Ultra thin profile |
| Dial | Silver sunburst |
| Bezel | Stainless steel, high-polished |
| Crystal | Sapphire crystal |
| Movement | Integrated automatic mechanical |
| Strap | Black leather |
| Water Resistance | 30m Water Resistant |
Buyer FAQ
Q1: How thin is the Master Ultra Thin replica compared to the genuine version?
It maintains an ultra-thin profile in a 39mm stainless steel case, offering a slim and elegant presence suitable for formal attire.
Q2: What features does the power reserve display have?
It indicates the remaining energy stored in the movement, helping you understand when the watch needs winding or additional wear.
Q3: Is the watch appropriate for wearing on a daily basis or at formal events?
Yes. The stainless steel case, silver sunburst dial, and black leather strap make it suitable for business wear and formal occasions.
Q4: How durable is the black leather band?
The leather strap is soft, comfortable, and develops a natural patina over time with regular use.














Reviews
There are no reviews yet.