Nivada Grenchen x Ocarat Antarctic Spider Green 114438

The Nivada Grenchen x Ocarat Antarctic Spider Green Ref. 114438 is a limited-edition reinterpretation of a quirky and collectible mid-20th-century sport watch, released in collaboration between Swiss heritage brand Nivada Grenchen and French jeweler Ocarat, with only 50 numbered examples produced. Housed in a 38 mm stainless steel case that combines polished and brushed surfaces, the watch wears comfortably at about 11.1 mm thick and fits a range of wrists with its classic proportions and modern finishing. The dial is the standout feature: a smoky green sunray finish accented by a unique “spider” motif formed by radial lines extending from vertically applied hour markers—an expressive sector dial design that gives the model its nickname and an unmistakable visual identity. A double-domed sapphire crystal with cyclops magnifier protects the dial, and applied Dauphine hands and luminous dots enhance legibility while adding vintage charm.

At its heart beats a Swiss-made Soprod P024 automatic movement, offering reliable timekeeping with a classic three-hand layout and date display at 3 o’clock, while a screw-down crown and solid caseback deliver robust 100 m water resistance for everyday wear. The combination of vintage inspiration, vivid green dial, and limited-edition status positions the Antarctic Spider Green as both a collectible piece and a versatile daily wearer that bridges mid-century design with contemporary craftsmanship.

Reference: 114438

Dated: Undated

Bracelet: Stainless Steel Beads of Rice

Case: 38mm x 11.1mm Thickness - Stainless Steel

Lug Width: 20mm

Dial: Green

Movement: Soprod P024 - Automatic

Functions: HMS, Date

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

Crystal: Double Domed Sapphire Glass

Bracelet size: 7.5"

Case has no wear. Bracelet has no wear. Dial, hands, and crystal have now wear.

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.