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Alpha 24-Hour Dial Military Wristwatch

ProbableCredible evidence exists but classification is not fully established.

Record status

Individual type · partial

Period

1950s

This vintage 1950s Alpha wristwatch features a patinated black 24-hour analog dial with gold-tone Arabic numerals, an outer minute track, and matching hands accompanied by a red-tipped central sweep-second hand.

The dial is inscribed 'ALPHA / 17 JEWELS' and 'ALPHAFLEX / WATERPROOF / INCABLOC'. According to the seller, the watch is powered by a 17-jewel manual-winding caliber FHF 28 movement operating at 18,000 vibrations per hour. The round metallic case measures 33 mm in diameter with classic lugs, an acrylic crystal, and a screw-down case back. It is paired with a black two-piece leather strap.

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
24-hour wristwatch
Case Size
33 mm
Jewel Count
17 Jewels
Place recorded
Switzerland
Movement Caliber
FHF 28
Case Back Markings
Alpha Incabloc Antimagnetic Made and cased in Switzerland Waterproof 57 97 46
Maker / attribution
Alpha
Vibrations Per Hour
18,000 vph

Design

Visible features
• Black 24-hour dial exhibiting extensive spotting, bubbling, and aged patina across the surface. • Gold-tone Arabic numerals configured in a 24-hour layout with an outer minute track. • Luminous-style gold-tone hour and minute hands with a slender central seconds hand bearing a red arrowhead tip. • Dial text reads 'α ALPHA / 17 JEWELS' below 24 and 'ALPHAFLEX / WATERPROOF / INCABLOC' above 12, with 'SWISS' visible at the very bottom edge. • Polished metallic case and bezel displaying wear, minor nicks, and surface scuffs on the lugs. • Fitted with a black textured leather strap with black stitching.
Dial Configuration and Visual Aging
The watch features an analog black dial displaying a 24-hour scale marked with gold-tone Arabic numerals, accompanied by an outer minute track and matching hands. Direct observation records that the dial face exhibits extensive spotting, bubbling, and aged patina across the surface. Below the 24 position, dial text reads 'α ALPHA / 17 JEWELS', while above the 12 position it reads 'ALPHAFLEX / WATERPROOF / INCABLOC', with 'SWISS' visible at the very bottom edge. Seconds are tracked via a central sweep-second hand that terminates in a red tip.
Case Specifications and Physical Condition
The round metallic case measures 33 mm in diameter (35.3 mm including the pull-push crown), 40.8 mm lug to lug, and 9.2 mm in thickness, with a lug width of 17 mm. Direct visual inspection reveals a polished finish displaying wear, minor nicks, and surface scuffs on the lugs. The case is fitted with an acrylic crystal, a fixed bezel, and a screw-down back, and it is paired with a black two-piece leather strap. External case back markings recorded in the listing read: 'Alpha Incabloc Antimagnetic Made and cased in Switzerland Waterproof 57 97 46'.
Reported Movement and Manufacturing Origin
According to the seller's product description, the watch is powered by a manual-winding mechanical movement identified as caliber FHF 28, featuring 17 jewels, an operating frequency of 18,000 vibrations per hour, Incabloc shock protection, antimagnetic features, and a reported 44-hour power reserve. As movement photographs are not provided in the listing, these mechanical components are not verified by direct visual examination. The source presents conflicting claims regarding the watch's origin: the listing overview notes 'Swiss made' and cites case back markings stating 'Made and cased in Switzerland', but the specification table designates the country of manufacture as 'United States'. The 1950s date attribution likewise represents an approximate dealer assessment.

Identification

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: Source specifications inconsistently list 'Country of Manufacture: United States' alongside 'Swiss made' and a case back marked 'Made and cased in Switzerland'.
  • Research required: Movement caliber FHF 28 and internal components are not visible in the supplied photograph and rely solely on source documentation.
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