Our watches are pre-owned or vintage, unless stated otherwise. Their capacity to tell accurate time & manage power is consistent with available technology during their time of production.

Never experiment with a watch unless you are a watchmaker - Curiosity killed the watch! When unsure about setting features, please contact us!

Pristine GRUEN Airflight Precision (Dual Standard & Military Time) Jump-Hour Windows

This watch was SOLD on September 18, 2010 (Destination: New York, NY, U.S.A.).


Gender: male Crystal: acrylic Dial Width: 30 mm Dial Height: 30 mm	Movement: 17 jewels manual-wind Case: stainless steel Case Width: 36 mm without crown Case Height: 42 mm with lugs Case Thickness: 8 mm Case Number: 510 Movement Number: 510 RSS Bracelet: stainless steel Bracelet Length: 5.75 in (measures up to 7.25 in)

This is an authentic Swiss-made GRUEN Airflight Precision Pilot Manual-Wind Watch with switching or jump hour-windows

black detail against satin white dial
12-hour to 24-hour switching or jump hour-windows
STEEL case, back, crown, bracelet & clasp
17 jewels manual-wind movement with 31-hour power reserve

Here are some awesome blast-from-the-past GRUEN Airflight print advertisement for your appreciation & reference! Click the images below to expand to full-view.

This watch keeps good time & is in good working condition! Add this to your collection of vintage quality timepieces!

The photos presented below are of the actual item for sale. Kindly study them carefully because what you see is what you will get. We try our best to describe watches as accurately as we can that's why we present them visually & literally. In case we missed a few points, you are welcome to ask questions.

gruen airflight precision manual-wind pilot watch

This is a vintage GRUEN Airflight Precision has unique switching or jump hour-windows that change mechanically at midnight/noon, to display 12-hour standard time or 24-hour military time.

The GRUEN Airflight was designed for pilots who need 24-hour reference for flight time. At noon, the windows switch to show a 24-hour time, at midnight the windows switch back to show 12-hour time. This feature is credited to a rotating disk underneath the main dial. The hours are displayed in alternating sphere/diamond-shaped windows.

This watch is in VERY GOOD condition, according to the Timezone Grading System: The watch shows what might be considered normal wear by a careful owner who wore the watch regularly. Scratches are evident, but no nicks or dings. May have replacement parts. Running & keeping good time, though may need minor regulation. A sound, attractive presentation overall. 83-87%

steel case; original silver-electroplated steel

satin white dial or face

gold-filled hands

gold-filled GRUEN symbol logo, black GRUEN name logo & "PRECISION" at 12 o'clock

black "SWISS" at 6 o'clock

clearly-marked black grid

unique switching or jump hour-windows that change mechanically at midnight/noon, to display 12-hour standard time or 24-hour military time

At noon, the windows switch to show a 24-hour military time, at midnight the windows switch back to show 12-hour standard time. This feature is credited to a rotating disk underneath the main dial. The hours are displayed in alternating sphere/diamond-shaped windows.