Vintage 1970s Helbros Invincible Day Date 17J Manual Watch Black Ombre Dial R76

Vintage 1970s Helbros Invincible Day-Date – Stunning Black Ombré Dial – EXCELLENT Timegrapher Specs

Up for sale is a gorgeous, highly stylized 1970s Helbros Invincible Day-Date mechanical men’s dress watch. Manufactured in West Germany, this retro timepiece features a phenomenal black-to-silver gradient dial layout that perfectly captures the bold aesthetic design of the 1970s.Unlike most vintage watches sold with an "unknown working state," this piece has been fully tested on a professional Weishi Multifunction Timegrapher and shows incredible, near-perfect mechanical health.

Key Specifications:

Brand / Model: Helbros Invincible Day-Date

Movement Caliber: High-Grade Helbros Caliber 89A (17 Jewels, Mechanical Hand-Winding)Movement Reference: R76

Country of Origin: West Germany (Dial marked "West Germany", movement stamped "Germany")Case Metal: Chrome-Plated Base Metal Bezel with a Stainless Steel Back

Case Size: 35 mm (excluding crown)Lug Width: 18 mm

Strap: Brand new aftermarket smooth black genuine leather strap

Verified Timegrapher Performance:

Buy with complete confidence! The 17-jewel manual-wind movement is running flawlessly. The verified performance metrics on a professional timegrapher show:

Rate Accuracy: -7 seconds per day (Exceptional accuracy for a 50-year-old vintage timepiece)Amplitude: 296° (Indicates a highly healthy mainspring delivering strong, modern-grade power)Beat Error: 0.2 ms (Excellent hairspring balance alignment; practically negligible error)Frequency: 21,600 vph

Condition Report:

Dial & Hands: Absolutely striking original factory black-to-silver ombré / gradient dial. The finish shifts seamlessly from a deep charcoal black edge to a bright silver sunburst racing stripe through the middle. Features bold raised silver indices, matching hands, and an expansive dual day-date calendar frame at 3 o'clock.

Case & Crystal: The chrome-plated case exhibits honest vintage character from normal wear, with typical surface hairline scratches and minor pitting/plate wear visible along the left side-wall, case back edges, and the winding crown. The high-domed acrylic crystal is polished, clean, and crack-free.

Functionality: The movement winds up smoothly, ticks strong, and keeps excellent time. The day-date calendar complications flip over correctly.

Fast, secure shipping. The 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!