Vintage Zodiac Hermetic 723-920 Watch Automatic Cal 70-72 Crosshair Timegrapher

Vintage Zodiac Hermetic Automatic – Caliber 70-72 – EPSA Case – Stunning Crosshair Dial

Up for sale is a beautiful, highly collectible 1960s Zodiac Hermetic Automatic men’s dress watch (Reference 723-920). This exceptional timepiece combines Zodiac’s historic "Hermetic" sealed case design with the legendary Caliber 70-72 movement—the exact same high-grade mechanical architecture shared with the iconic vintage Zodiac Sea Wolf dive watches.

This specific example is a premium collector's package, boasting an elite EPSA-manufactured case and fully documented, excellent mechanical health verified on a professional timegrapher.

Key Specifications:

Brand / Model: Zodiac Hermetic Automatic Date

Reference Number: 723-920

Movement: Factory Zodiac Caliber 70-72 (21 Jewels, Automatic, Swiss Made)

Case Manufacturer: EPSA (Ervin Piquerez S.A. – legendary maker of Swiss Super Compressor cases)

Case Metal: 20 Micron Heavy Gold Electroplated Bezel (Stamped PLAQUE G 20 EPSA between the lugs) with a Stainless Steel Case Back

Case Size: 34.6 mm (excluding crown)

Lug Width: 18 mmStrap: Brand new aftermarket brown suede leather strap with contrast stitching

Verified Timegrapher Performance:

Buy with complete confidence! Unlike most vintage watches listed with "unknown working state," this watch has been mechanically tested on a Weishi Multifunction Timegrapher and shows outstanding health metrics:

Rate Accuracy: +13 seconds per day (Excellent for a 60-year-old vintage watch)

Amplitude: 260° (Indicates a strong, healthy mainspring and clean gear train)

Beat Error: 0.7 ms (Negligible hairspring error, running beautifully balanced)

Frequency: 21,600 vph

Condition Report:Dial & Hands: Beautiful original silver sunburst crosshair dial featuring faint intersecting horizontal/vertical layout lines and a framed date complication window at 3 o'clock. The dial surface displays a very honest, light, and attractive vintage speckling/patina that adds incredible unique character.

Case & Crystal: The heavy 20-micron gold plating remains thick and vibrant with light surface micro-scratches and minor edge wear consistent with age, but no major brassing or gouges. The acrylic crystal is clean.

Functionality: The automatic rotor winds smoothly, the quick-set style date functions properly, and the watch keeps great time.

Note: While historically engineered with an airtight Hermetic seal, water resistance is untested and cannot be guaranteed on vintage timepieces.

Fast, secure shipping. Watch will be packed with professional care. Please review all high-resolution photos for exact cosmetic details and feel free to reach out with any questions!