Brand name: Omega

Product Name: Speedmaster LCD Digital Quartz Chronograph

Production period: 1977-1979

Model number: 186.0004 (1860004)

Case size: 36mm (excluding crown)

Arm circumference size: 17.5cm

Lug width: 20mm

Case material: Stainless steel

Belt material: Stainless steel

Buckle folding type

Glass material: Crystal windshield

Dial: Black

Movement: Quartz

Caliber: 1620

Waterproof: Non-waterproof

Specifications: Date display, day of the week display, chronograph, backlight

Accessories: Genuine simple box, repair statement (complete service completed in July 2022 in manufacturer's home country), service warranty card included

Condition: A rank

There are some small scratches due to use, but it is in good condition with no noticeable major scratches.

Maintenance was completed in July 2022 in the manufacturer's home country.

Remarks: This is the Omega Speedmaster Quartz Ref.1860004, which was sold in a wide variety of variations at the time.

It bears the word "Professional", which was not given to the automatic or Date/Day-Date series.

Equipped with Cal.1620. Quartz crystal watches at the time consumed more power than current ones, so they required large-capacity, thick button batteries to operate, but this movement, Cal.1620, required two button batteries. The problem is solved by using it, and it is housed in a thin case.

Like the tuning fork type, it was short-lived, and no quartz model was made until the digital/analog type X-33 was introduced.

"Speedmaster Quartz Ref.1860004" is a very rare model as there are only a few in existence today.

Brand name: Omega

Series name: Speedmaster (Omega)

Material: (watch strap) stainless steel

Condition: Used

Used condition: Used item - good

Dial type: Chronograph