Nivada Grenchen Aquamar Black

The Aquamar collection is Nivada Grenchen’s modern revival of a lesser-known but charismatic dive watch from the late 1960s. Rooted in the Antarctic family, each Aquamar model blends vintage charm with professional-grade technical features, making it a highly versatile and collectible timepiece. Faithful to its original proportions, the Aquamar features a 38 mm stainless steel case, double-domed sapphire crystal, and a 200-meter water resistance rating, making it perfectly suited for both diving adventures and everyday wear. Its bi-directional ceramic bezel and sandwich-style dial offer depth, legibility, and distinctive character. A signature feature of the collection is the bi-color roulette-style date disc, which brings a whimsical, collector-friendly touch to the otherwise tool-oriented design. But what truly sets the Aquamar apart is its innovative changing lume system: the date disc itself is infused with two different Super-LumiNova tones—white and vintage beige. As the date changes, so does the glow, giving the watch a subtly shifting appearance between a crisp modern look and a warm, aged aesthetic. This clever feature transforms the Aquamar into a dynamic visual experience that evolves daily on the wrist. The dials—available in Matte Blue, Black, and Grey—are paired with white and faux patina options Super-LumiNova indices, further echoing the charm of aged tritium found on vintage divers. Powering the watch is the SOPROD P024 automatic movement, offering reliable Swiss precision and a 38-hour power reserve. Completing the package is an engraved caseback featuring the emblematic Antarctic penguin—a symbol of the collection’s enduring spirit and roots in exploration.

SPECIFICATIONS

Case Size/ Diameter

‍38mm

‍Case Thickness

‍12.9mm

‍Dial

‍Black Matte Lacquered Finishing w/ Hollow-out Indexes, Calendar disc w/ Thick Printed White, Dark Orange & PMS 7401C Super Lum.

‍Caseback

‍316L Stainless Steel Closed Caseback with ‘Penguin’ engraving Gold medallion

‍Power Reserve

‍38 Hours

‍Bezel

‍Ceramic Bezel, Black Background, with SLC1 White Luminous Markers & Numerals, Bi-directional Turning

‍Strap Width

‍20x16mm

‍Movement Type

‍Self-winding

‍Movement

‍P024 No Date version

‍Glass

‍Double Domed Sapphire Glass with Anti-Reflective Coating

‍Water Resistance

‍20ATM

‍Function

‍Analog Display Hours, Minutes, and Central sweep second, Changing Lume Calendar Disc, Self-winding mechanism

‍Frequency

‍28’800 vibrations per hour (4Hz)

‍Power Reserve

‍38 hours

‍Number of jewels

‍25