4.1263 SORNA ‘Alarm’, Chrome, Switzerland 1970’s

1970’s SORNA alarm watch. Striking, memorable ‘Speaker’ design, embodied by the Omega-Tissot tandem, which gained huge popularity in the 1970’s. The watch is comfortable and eye-catching, perfect for pairing with a suit. The mechanism has been cleaned, lubricated, and adjusted. Everything works properly, it has been fitted with a new strap, and has a 6-month warranty on the accuracy and function.

Key Features

This striking, memorable ‘Speaker’ design, embodied by the Omega-Tissot tandem, gained huge popularity in the 1970’s. When you think about the most successful watches of the seventies, the first thing that comes to mind is this great design. The Swiss company Sorna Watch SA produced watches under a dozen different brand names.

In addition to the style and integrity, this watch has a nice alarm function that buzzes confidently at a given moment. This item is in perfect condition, practically like new, and shows minimal traces of time.

In the 1970’s, quartz movements began to displace mechanical ones, due to their cheapness, and manufacturers entered into a technological race to simplify and reduce the cost of production of classical mechanical movements, producing movements with a Roskopf pin descent. In this watch, just such a movement is used, the bridges and plates are stamped, but the number of jewels is 17 (many used just one jewel). The movement runs well, and everything works as it should.

The watch is comfortable and eye-catching, perfect for pairing with a suit.

Servicing and Guarantee

This timepiece has been serviced with full disassembly. There is a 6-month guarantee, subject to the usage and care guidelines. Comes with a genuine leather, snakeskin style black strap.


Case and Strap

  • Rounded case with thick edges.
  • Chrome-plated.
  • Original acrylic crystal.
  • Stainless steel screw caseback with model number 2590.
  • Two crowns: one for alarm clock and one for general running of the watch.
  • In close to perfect condition.


  • Diameter without crown 38 mm.

Dial and Hands

  • Dark blue original dial.
  • Superimposed luminous indices.
  • “SORNA-17 JEWELS-ALARM-SHOCKPROTECTED – Manufactured in Switzerland” signature.
  • Block style hands with lume.
  • Orange alarm pointer.
  • Central seconds hand.
  • In close to ideal condition, with minimal natural traces of time.


  • Swiss-made movement.
  • Ronda 1223-21 caliber.
  • 17 jewels.
  • Manual winding.
  • Shockproof.
  • Power reserve 33+ hours.
  • Nickel plated plates and bridges.
  • In very good technical and cosmetic condition.

Servicing and Guarantee

  • Fully serviced with disassembly in our Bristol shop.
  • Mechanics in full working order.
  • New, genuine leather snakeskin style black strap.
  • 6-month warranty.
  • Guarantee Terms and Conditions. 

Links and Resources:

Ronda 1223-21 Caliber Specification.

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Case material


Dial tone

Blue, Red



Size grade

36-38 mm

Year approx