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Zenith 6-66, compact 1960s design
This Zenith Automatic reference 6-66 speaks of late 1960s design with a compact, geometric steel case and a distinctive dark gray dial. The applied faceted baton markers and the angled date window at about 4:30 give the watch a measured modernist character. Inside is Zenith’s in-house Caliber 2542PC (25 jewels), a late‑1960s automatic movement noted here for its stable running and period-appropriate performance. Recently serviced (06-03-2026), the watch presents a straightforward proposition for collectors seeking a well-built, era-authentic wristwatch with character and reliable mechanics.
Watch dossier
Important details, without the clutter.
01Specifications+
- Brand / model
- Zenith Zenith Ref. 6-66
- Reference
- 6-66
- Estimated production
- circa 1968
- Case material
- Steel
- Case diameter
- 30 mm
- Lug-to-lug
- 40 mm
- Thickness
- 11 mm
- Dial
- Original dark gray, applied faceted baton hour markers, Zenith star and Zenith Automatic text, angled date window at about 4:30
- Crystal
- Acrylic (period-correct)
- Crown
- Signed
- Strap / bracelet
- Calf leather
- Movement
- Automatic
- Caliber
- 2542PC
- Jewels
- 25
02Service & provenance+
Last serviced: 06 March 2026
The service includes the following operations: • Disassembly of the watch • Movement overhaul: dismantling • Cleaning, reassembly and lubrication • Use of Moebius synthetic oils • Ultrasonic cleaning of the case • Reassembly of the case and the watch • Final technical and aesthetic checks
03Delivery & returns+
Current store policies apply to this purchase.
Included with the watch