Junghans Aquaris Blue - 27/4660.44

Made for the sea and finished in a vivid sunray-brushed blue, the Junghans Aquaris Blue (ref. 27/4660.44) is a German automatic dive watch water-resistant up to 50 bar. Applied elements filled with X1 Grade Green Light luminous substance glow from the blue dial, and a unilaterally locking inner rotation ring, set with the screwed crown at 2 o'clock, keeps track of elapsed time beneath the waves.

Inside the cushion-shaped 46.9 mm case of satin-finished stainless steel with polished accents beats the reserved self-winding caliber J830, offering up to 48 hours of power reserve and a shield of special soft iron alloy for added protection against magnetic fields. The crown at 4 o'clock sets the time and winds the movement, a screw-down case back carries an engraved diver's motif, and a sapphire crystal with antireflective coating on both sides keeps the dial and date crystal clear. You also get two ways to wear it: a stainless steel bracelet with diver's clasp, notch adjustment, fold extension and click-ball locking, plus a blue synthetic rubber strap with folding clasp, both fitted with Quick Release for fast changes.

Features

• 50 Bar Water Resistance – built for diving, swimming and sailing.
• Locking Inner Rotation Ring – operated by the screwed crown at 2 o'clock.
• Caliber J830 with Magnetic Shield – self-winding, up to 48 hours of power reserve, soft iron alloy protection.
• Blue Sunray Dial – applied elements with X1 Grade Green Light luminous substance.
• Bracelet Plus Rubber Strap – diver's clasp with two extension options, and a blue rubber strap, both Quick Release.

Specifications

• Reference: 27/4660.44
• 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: Blue with sunray brush, 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 with engraved diver's 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: Blue synthetic rubber strap with folding clasp, 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.