Omega Seamaster 120

Omega Seamaster 120

The Seamaster 120 is perfect for a certain type of dive watch collectors. Whereas most divers are oversized, inelegant clunkers, the SM120 is restrained, slim and simple (in a good way). It gets the job done without shouting at you from the wrist.

Omega has produced many classic diver watches ranging from the absurd (the PloProf) to the classics (Semaster 300). They come in all shapes and sizes, but none disappear on the wrist as well as the SM120 manages to do. With its 38mm case that comes in just under 11mm thick from case back to crystal, this is one of the most comfortable sports watches ever made by Omega. It was built to be a capable dive watch first and foremost, but in our casual world it makes the perfect all around since it so easily slips under a shirt cuff.

The cushion case is wonderfully retro, and the black dial with matching black date wheel is simple, clean and to the point. The bezel is well worn (this is a tool watch after all), but the watch looks great overall. Seamaster divers have long been popular among collectors, and the SM120 is seldom seen in the wild. If you’re looking for a great dive watch daily wearer, this is a nice choice.


Steel case is approximately 38mm (excluding the crown).

Overall condition: Original case shows only light signs of wear from use. Dial is in excellent original condition featuring polished steel markers at 6, 9, and 12, and a date function at 3. Original hands in excellent condition with luminous inserts faded from age. Original rotating bezel insert is well worn. Original crown and caseback.

Includes Omega signed steel bracelet and two 18mm Nylon Straps by Crown & Buckle.

More pieces you may enjoy

Kobold Soarway Seal Diver
Titanium Case With Full Kit
$ 3,900.00
Sinn EZM 1
Titanium-Cased Lemania 5100 Central Minute Chronograph
$ 6,600.00
Rolex Submariner
$ 15,500.00
Omega Seamaster Chronograph Gold Plate
Super Funky 1970s Automatic Chronograph
$ 1,650.00


Thank you for your interest in the Tudor Oysterdate Big Rose. Please fill out the form below and we will get back to you shortly.


Our Pledge

Analog/Shift stands behind the authenticity of our products in perpetuity.


We back each Analog/Shift vintage timepiece with a one-year mechanical warranty from the date of purchase.


All of our watches include complementary insured shipping within the 50 states. We are happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.

International Buyers

Please contact us prior to purchase for additional details on shipping and payment options