Reference 1368480 belongs to the Ultra-Thin Master series from Jaeger-LeCoultre as the Master Ultra Thin Moon 39, and this JLC Master Ultra Thin replica carries forward the collection’s defining characteristic: a case profile built around one of the slimmest automatic calibers the manufacture produces. The 1368480 dial layout introduces elements that differentiate it from the most pared-down references in the range: a 39 mm stainless steel case 9.9 mm thick, a blue sunray dial carrying applied steel baton indices, and a moon phase display at 6 o’clock with its date ring, all held inside the overall thin case envelope. Where some Ultra-Thin Master references strip everything back to hours and minutes, this one adds just enough functionality to make it a daily-wear candidate rather than a purely formal piece.

Technical Overview

• Reference: 1368480
• Case material: stainless steel
• Profile: ultra-thin automatic
• Crystal: sapphire
• Dial: blue sunray with applied steel baton indices
• Movement: clone Cal. 925/1, automatic, 28,800 vph
• Functions: hours, minutes, date ring, moon phase at 6 o’clock
• Power reserve: 42 hours (genuine Cal. 925/1: 45 hours)
• Water resistance: 50 m (same as genuine)
• Strap: black alligator with pin buckle

Adding a moon phase and a date ring to an ultra-thin movement requires careful engineering because the lunar disc and the wheels that drive it add height. The 1368480 still closes at 9.9 mm over a 39 mm case, which speaks to the caliber’s architecture.

Inside the Movement

The genuine 1368480 runs Jaeger-LeCoultre Cal. 925/1, an automatic caliber 4.9 mm thick with 38 jewels, beating at 28,800 vph. This watch carries a clone of that caliber: the same 28,800 vph beat rate, 42 hours of power reserve where the genuine Cal. 925/1 holds 45 hours, and water resistance of 50 m, the same as the original. Holding the total stack height within ultra-thin parameters is what lets the finished case stay at 9.9 mm. Jaeger-LeCoultre has been refining thin automatic movements since the mid-twentieth century, and the 1368480 benefits from that accumulated engineering knowledge. The 1368482 blue strap edition shares the same Cal. 925/1 platform and the same 39 mm steel case, but trades the blue sunray dial for a silvered one. Both are housed within the broader Ultra-Thin Master lineup, which covers simple time-only layouts through to moon phase displays.

What Sets It Apart

The 1368480 occupies the middle ground within the Ultra-Thin Master range: more functional than a pure two-hand reference, but still committed to the slim-case mandate. The moon phase at 6 o’clock and the date ring around it add practical value for everyday use without compromising the architectural intent. This Master Ultra Thin super clone finds that balance between wearability and thinness that makes the Ultra-Thin Master concept work as more than a showcase piece.

Blue is the boldest surface the Moon 39 case is offered with, and the other four Moon 39 dials are a click away for anyone weighing silver, black or gold instead. Our round-up of which JLC super clones actually hold up goes further, setting this reference against the rest of the manufacture.

Specifications

• Model: Jaeger-LeCoultre Master Ultra Thin Moon 39
• Reference: 1368480
• Case: stainless steel
• Case size: 39 mm x 9.9 mm
• Dial: blue sunray with applied steel baton indices
• Complications: moon phase at 6 o’clock, date ring
• Movement: clone Cal. 925/1, automatic, 28,800 vph
• Power reserve: 42 hours (genuine Cal. 925/1: 45 hours)
• Water resistance: 50 m (same as genuine)
• Crystal: sapphire
• Strap: black alligator with pin buckle