Phillips Auction House Senior Consultant Aurel Bacs is bringing back another historic movement in a modern watch.

This formula was tried and tested at the Zenith manufacture last year, when a limited run of ten pieces were fitted with famous Caliber 135-O movements. We're being treated to another experiment that's just as interesting this year: Panerai has invited Bacs to auction off a watch with one of the surviving Angelus SF 240 movements. The model will go under the hammer on November 3.

The first Angelus SF 240 movement was the smallest 8-day alarm movement at the time it was introduced by Stolz Frères of Le Locle in 1936. This movement was released with variations right up to 1970, and a series was made for Guido Panerai e Figlio in 1955 and 1961. 

It's immediately clear which series the movement used in the Radiomir Guido Panerai & Figlio belongs to: the production date is inscribed on the Glucydur balance wheel: JUIN.61 (June, 1961). Panerai installed Angelus SF 240 movements with the same marking in the Ref. 6152/1 watch.

They were used to replace the Rolex 618: a movement with a significantly inferior power reserve compared to the Angelus. The Rolex only had enough power reserve for 38 hours.

All the details of the Angelus SF 240 can be observed through a transparent caseback made of sapphire crystal, although the future owner will be given the option of replacing it with a plexiglass cover like the one used on the original vintage Ref. Modified 3646.

The historic movement is paired with an ultra-thin case made of the Panerai Platinumtech alloy. This innovative alloy is distinguished by its increased hardness compared to ordinary platinum. It debuted in 2021 when it was used for the Luminor Marina model.

The Radiomir Guido Panerai & Figlio has preserved the historic case size: the watch is presented in a cushion-shaped case measuring 47 mm in diameter. There's a choice of two straps to go with the case, including a strap made by Cuoierie Meccaniche Brelli,  the original leather strap maker for Officine Panerai.