Junghans Aquaris Diver - 27/4267.44

Built to take on deep water, the Junghans Aquaris Diver (ref. 27/4267.44) is a serious German automatic dive watch with water resistance up to 50 bar. Its matt dark grey dial uses distinctive applied quarter-hour markers and generous X1 Grade Green Light luminous elements, so the time stays readable as the light fades below the surface.

For timing a dive, the inner rotation ring turns via the screwed crown at 2 o'clock, locks in one direction and works hand in hand with the arrow-shaped minute hand. The reserved self-winding caliber J830 offers up to 48 hours of power reserve and a soft iron alloy shield against magnetism, while the satin-finished stainless steel case, 46.9 mm wide and 14.5 mm high with polished accents, is sealed by a screw-down case back embossed with a school of fish. It arrives with a stainless steel bracelet featuring a diver's clasp, notch adjustment, fold extension and click-ball locking, along with a black synthetic rubber strap with diver's extension, and Quick Release on both makes switching between them effortless.

Features

• Dive-Ready 50 Bar Rating – with a sapphire crystal antireflective on both sides.
• Arrow Minute Hand & Inner Ring – unilaterally locking ring set at 2 o'clock for dive timing.
• Applied Quarter-Hour Markers – matt dark grey dial with X1 Grade Green Light luminous elements.
• Antimagnetic J830 Caliber – self-winding, up to 48 hours of power reserve, soft iron alloy shield.
• Black Rubber Strap Included – diver's extension and Quick Release, alongside the steel bracelet.

Specifications

• Reference: 27/4267.44
• Collection: Aquaris
• Movement: Reserved self-winding caliber J830, increased protection against magnetic fields thanks to a shield made of a special soft iron alloy
• Power Reserve: Up to 48 hours
• Functions: Date, unilaterally locking inner rotation ring
• Dial: Matt dark grey with distinctive applied quarter-hour markers, applied elements with inlaid luminous substance in X1 Grade Green Light
• Case: Satin finished stainless steel with polished accents; screwed crowns: crown for minute ring setting at 2 o'clock, crown for time setting and manual winding at 4 o'clock
• Case Diameter: 46.9 mm
• Case Height: 14.5 mm
• Case Back: Screw-down case back embossed with school of fish motif
• Crystal: Sapphire crystal with antireflective coating on both sides
• Water Resistance: Up to 50 bar
• Bracelet: Stainless steel bracelet with diver's clasp, two extension possibilities (notch adjustment and fold extension), click-ball locking, Quick Release
• Additional Strap: Black synthetic rubber strap with diver's extension and Quick Release
• Made in: Schramberg, Germany

Timepiece History

Junghans was founded on April 14, 1861, in Schramberg in Germany's Black Forest, when Erhard Junghans and his brother-in-law, Jakob Zeller-Tobler, set up a firm making parts for large Black Forest clocks; the first complete Junghans clocks followed in 1866. By 1903, Junghans had grown into the largest clock manufacturer in the world, and in 1918 it completed its nine-level terrace building, the Terrassenbau, which today houses the Junghans Terrassenbau Museum. Owned by the Steim family since 2009, Junghans remains based in Schramberg today.

Junghans has long been at home in sport, from the hand-held stopwatches it made in the 1920s to the many major sporting events it timed from the 1960s to the 1980s, a period in which it introduced technical innovations in sports timekeeping and served as the official timekeeper of the 1972 Olympic Games. In February 2026 Junghans presented the Aquaris collection, made for diving, sailing, swimming and surfing, with water resistance up to 50 bar, which Junghans equates to 500 meters, and the reserved caliber J830 fitted with a Junghans-specific gear bridge, rotor and balance cock.