Omega Speedmaster Day-Date Mark 40 ref. 3520.50

The Omega Speedmaster ref. 3520.50 is a distinctive take on the classic Speedmaster, blending the familiar 39mm twisted-lug case and tachymeter bezel with a unique triple calendar, vertical chronograph layout, and day/night indicator. Introduced during the late '90s, it represents a bold departure from the traditional "Moonwatch" lineage while retaining hallmark Speedmaster aesthetics. Powered by the robust Omega caliber 1151, based on the ETA 7751, it offers reliable automatic performance and a 44-hour power reserve. The watch is completed by a stainless steel bracelet that integrates seamlessly with the case for a sporty yet refined presence on the wrist.

This watch is in great condition, with typical signs of wear from regular use. The dial and hands are pristine. The crystal shows noticeable scratches that are especially visible because of the anti-reflective coating, but there are no cracks or chips. There are scratches and scuffs around the case, such as on the top and bottom of the lugs and along the bezel. The bracelet exhibits normal wear, most of which remains superficial and could be improved with a polish. The movement is running smoothly, and all functions are operating correctly.

This watch does not come with its original box or papers.

Brand: Omega

Model: Speedmaster

Reference: 3520.50.00

Year: 1998 (according to the serial number)

Case size: 39mm

Lug-to-lug: 44.5mm

Case thickness: 14mm

Case material: Stainless steel

Dial: Black

Movement: Omega caliber 1151

Water resistance: 50 meters

Functions: Chronograph, day, date, month, day/night Indicator

Strap/bracelet: Stainless steel with sliding clasp

Lug width: 18mm