The late 1930s saw a mini-revolution for Omega - the introduction of the Omega 23.4SC calibre. This was their first production Omega watch with a central sweep seconds hand, a progression from the seconds being within a small sub-dial at 6. It was marketed in the guise of two main designs. The Omega Medicus was the obvious application for the medical profession as the sweep seconds hand was so much easier to read when counting a patient's pulse. Then there  was the Omega Naiad, the watch for sale here. Not only did it boast the new sweep seconds hand but it was the first production Omega to be water-resistant. Most of the Naiads were characterised by a slightly oversized case-back compared to the case when measured by diameter, producing a small step. Note that this watch is no longer water-resistant!


According to the watch serial number, this Naiad was manufactured in about 1940. Considering its about 79 years old it's in excellent condition. The case and case-back have only tiny dints and micro scratches.

The dial displays a gentle, even patina. There is an outer railroad track index for the minutes and seconds. Saturated black Arabic numerals. Superb blued steel Plume hands and a black seconds hand with its delightful counterbalance. The crystal has minor scratches and the crown has been replaced at some stage.


Inside, the Omega 23.4SC calibre is complete and fully operational. Both the movement and the case-back are fully marked Omega, as you would expect.


Comes with a black leather strap which, whilst it's signed Omega, I'm not convinced it's genuine.


A relatively small watch by todays standards.


Overall a real piece of Omega Heritage.

1940 Omega Naiad 28.5mm

SKU: 20001wr-ss-ma
£575.00 Regular Price
£488.75Sale Price
  • Year 1939-1943
    Case Metal Stainless steel
    Back Metal Stainless steel
    Back Type Screw
    Diameter* 28.5
    Length** 35.8
    Power Manual
    Calibre 23.4SC

    *mm excluding the crown

    **mm tip of lug to tip of lug