2023 Jaeger-LeCoultre Master Control Geographic Complete Set

Jaeger-LeCoultre Master Control Geographic — Ref. Q4128420

Video footage available upon request. Open to offers. Bracelet sizing service available.

About This Reference

The Master Control Geographic is Jaeger-LeCoultre's signature travel complication, and the Q4128420 represents its most refined iteration yet. A crown-operated city indicator allows the wearer to set a second time zone with a single turn, displaying it at 6 o'clock alongside a 24-hour ring that covers all 24 world time zones simultaneously — no pusher corrections, no guesswork. A power reserve indicator at 9 o'clock and a date window at 3 round out a dial that delivers serious complication depth without ever feeling cluttered. The silvered grey sunray-brushed dial, dauphine hands, and applied steel markers keep the presentation unmistakably Master Control — restrained, legible, and quietly authoritative. Inside, the in-house calibre 939AA with its 295 components draws on a 70-hour power reserve, and every Master Control timepiece undergoes JLC's proprietary 1,000-hour quality control test before leaving the Manufacture.

Specifications

Model: Jaeger-LeCoultre Master Control Geographic

Reference: Q4128420

Caliber: 939AA (Jaeger-LeCoultre manufacture, automatic, 295 components, 32 jewels, 28,800 vph / 4 Hz)

Case: Stainless steel, 40mm × 10.96mm

Bezel: Fixed stainless steel

Crystal: Sapphire with anti-reflective coating on inner surface

Caseback: Screw-in transparent sapphire

Dial: Silvered grey, sunray-brushed, steel dauphine hands and applied hour markers with lume

Functions: Hours, minutes, seconds, date at 3 o'clock, second time zone at 6 o'clock, 24-hour world time display, power reserve indicator at 9 o'clock, crown-operated 24-city indicator

Strap: Novonappa® vegetable-tanned brown calfskin leather with quick-release spring bars

Clasp: Stainless steel double-folding buckle (18mm)

Movement: Automatic

Power Reserve: 70 hours

Water Resistance: 50m / 5 bar

Condition Report

Overall condition is excellent. The watch is unpolished.

• Case: 10/10 — no visible marks
• Bezel: 10/10 — no visible marks
• Crystal: 10/10 — no visible marks
• Dial/Hands: 10/10 — no visible marks
• Strap: 10/10 — no visible marks
• Clasp: 10/10 — no visible marks
• Caseback: 10/10 — no visible marks

Photos taken on strap at standard length, fitting approximately 16–20cm (6.3–7.9 inch) wrists.

Delivery Contents

• Watch (complete set)
• Original inner and outer boxes
• Warranty card (dated 2023)
• All papers and booklets
• Please refer to photos for full contents
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Service & Authenticity

The watch has been run on a timegrapher and is performing within specification. No prior service history. Standard 2-year manufacturer warranty has expired; extended 8-year coverage may apply if registered through Jaeger-LeCoultre Care.

Shipping & Legal

• Ships from: Huntsville, AL
• Shipping: Fully insured overnight with tracking provided
• Shipping within CONUS only
• Buyers are responsible for any applicable taxes and duties
• Watch is sold in accordance with United States laws and regulations

Questions?

All watches are inspected by our watchmakers for condition, authenticity, and functionality before sale. Feel free to reach out via messenger with any questions.