Nivada Grenchen Autochron Blue Limited Edition 77003A45

A true revival of a 70s prototype, the Autochron Blue Petroleum is a vintage-inspired automatic Autochron with a modern twist. Its matte petroleum blue dial features a granulated texture, creating a striking visual effect alongside the embossed black sub-dials. The dial is enhanced with Super-Luminova-coated baton indices and hands, ensuring excellent readability.

Powered by the Valjoux 7750-ETA automatic movement, this timepiece delivers 42 hours of power reserve and features a tachymeter scale for speed measurement. The 38mm stainless steel case is topped with a domed sapphire crystal and features a bidirectional fluted rotating bezel with a yellow dot accent at 12 o’clock.

Water-resistant up to 200 meters (20 ATM), the Autochron Blue Petroleum is available with Tropic rubber, leather, and steel straps, offering versatility for any occasion.

Reference: 77003A45

Limited: 100 Pieces

Dated: 2026

Bracelet: Bracelet - Stainless Steel

Case: 38mm x 12.7mm Thickness 46.5mm lug to lug - Stainless Steel

Lug Width: 20mm

Movement: Valjoux-7750-ETA with date - Automatic

Functions: HMS, Chronograph, Date

Box and Papers: Inner/outer boxes, and warranty card

Crystal: Double Domed Sapphire

Bracelet size: 7.5"

New

Nivada Grenchen, established in 1926 in Grenchen, Switzerland, quickly became renowned for its rugged tool watches that pushed the boundaries of horological innovation. The brand solidified its reputation with the introduction of the Antarctic in 1950, the first waterproof automatic watch. This timepiece gained fame when it accompanied members of the U.S. Navy's Operation Deep Freeze I during their South Pole expedition from 1955 to 1956.



In 1961, Nivada Grenchen launched the Chronomaster, a versatile waterproof chronograph designed for aviators, divers, and sports enthusiasts. The company continued its innovative streak with the release of the Depthomatic in 1964, the first diver's watch featuring a depth indicator, followed by the Depthmaster in 1965, capable of withstanding pressures up to 1,000 meters.

After a period of dormancy, Nivada Grenchen experienced a rebirth in 2018, reintroducing two of its most iconic models—the Chronomaster Aviator Sea Diver and the Antarctic—at the forefront of its revival. The relaunch paved the way for the brand’s enduring appeal among modern watch enthusiasts while honoring its storied heritage.