Leonidas chronograph
Record status
Individual type · partial
Period
1940's
This Leonidas chronograph is a manual-winding wristwatch from the 1940s, featuring the Landeron 48 movement. The watch is constructed with a stainless steel case measuring 35mm in diameter, excluding the winding crown, and 42.50mm in length including the lugs.
The light grey dial displays two sub-dials at the three o'clock and nine o'clock positions, representing minutes and seconds respectively. The dial is printed with black Arabic numeral hour markers and features an outer blue scale for telemeter and tachymeter functions. The hands are designed in a black leaf style. The caseback is inscribed with external engraving denoting the base metal back material, while internal markings indicate Swiss origin and a serial number of 732085.
The movement operates with 17 jewels and a power reserve of 41 hours. The watch is currently fitted with a brown leather strap, with a lug width of 18mm.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Technical characteristics
- Type
- Chronograph
- Maker
- Leonidas
- Diameter
- 35mm
- Movement
- Landeron 48
- Lug width
- 18mm
- Serial number
- 732085
- Place recorded
- Switzerland
- Movement jewels
- 17
- Caseback marking
- Stainless Steel - Back Base Metal
- Maker / attribution
- Leonidas
Design
- Dial and Hands
- The right sub-dial at the three o'clock position records elapsed minutes, while the left sub-dial at the nine o'clock position functions for running seconds. Hour markers are presented in black Arabic numerals. A prominent feature of the dial is the external peripheral track, finished in blue, which provides functionality for both telemeter readings up to one kilometer and a tachymeter scale reaching 1000. The time is indicated by black hands styled in a leaf motif. The dial surface shows signs of age, consistent with the period of production. The overall legibility of the chronograph functions is supported by the clear contrast between the dark markings and the lighter dial base.
- Visible features
- • Black 'Leaf' style hands • Blue printed telemeter and tachymeter scales • Two-register dial configuration • Stainless steel case construction
- Case and Inscriptions
- The case is manufactured from stainless steel, although the external engraving on the caseback specifies 'Stainless Steel - Back Base Metal,' indicating that while the caseback is stainless steel, the main case body is composed of a base metal. The dimensions are measured at 35mm in diameter excluding the crown, with an overall length of 42.50mm including the lugs. The distance between the lugs for the strap is 18mm. Internal documentation found on the watch components includes the word 'Swiss' and the serial number 732085. The watch is paired with a brown leather strap as part of its current configuration.
- Movement and Technical Specifications
- The timepiece is powered by a manual-winding movement identified as the Landeron 48 caliber. This movement is configured with 17 jewels and provides a power reserve of 41 hours. It operates at a frequency of 18,000 vibrations per hour (A/h). According to the provided data, the Landeron 48 movement was produced between 1937 and 1970.
Identification
- Serial number
- 732085
- Source note
- Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.
Research required
- Research required: Origin of case material is described as base metal on the caseback
- Research required: Exact production year within the 1940s is not specified