Heuer Skipper Ref. 15640 Mk. I
Record status
Individual type · partial
Period
1972
This Heuer Skipper, reference 15640, is a Mk. I variant chronograph wristwatch designed for yacht racing. It is equipped with a specific 15-minute regatta countdown sub-dial colored in red, white, and blue, segmented into five-minute intervals for racing start timing.
The watch is powered by the Heuer Calibre 15 automatic movement. The timepiece is housed in a tonneau-shaped stainless steel case measuring 42mm, paired with a bidirectional ratcheting blue bezel featuring a tritium pearl at the 12 o'clock position. The matte blue dial includes tritium-filled hour markers and matching original hour and minute hands. The watch features fluted pump pushers and a signed Heuer crown, and is currently supplied on a two-piece handmade leather strap.
The auction description reports that the case has undergone a light polish in the past and retains its original finishing.
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 wristwatch
- Bezel
- Bidirectional ratcheting
- Brand
- Heuer
- Movement
- Heuer cal. 15
- Reference
- 15640
- Dial color
- Blue
- Case material
- Stainless Steel
- Serial number
- 30XXXX
- Place recorded
- Switzerland
- Maker / attribution
- Heuer
Design
- Case and Bezel
- The watch features a 42mm tonneau-style stainless steel case. According to the seller, the case has been lightly polished in the past but retains its original finishing, chamfers, and strong dimensions. It is fitted with fluted pump pushers and a signed Heuer crown. The timepiece includes a bidirectional ratcheting blue bezel. The bezel assembly contains a tritium pearl at the 12 o'clock position. The seller notes that the bezel shows no major signs of use or fading, and the case back remains free of significant damage.
- Dial and Hands
- The Mk. I dial is matte blue and features a regatta countdown sub-dial. The sub-dial is divided into red, white, and blue sections to facilitate timing during the lead-up to a yacht race, with numerals at 10, 5, and 0. The markers and hands retain their original tritium luminous material, which has developed a creamy patina. Under U.V. light, the hour hand shows no degradation, while the minute hand exhibits minor, stable cracking. The dial itself is reported as being well preserved without blemishes.
- Visible features
- • Matte blue dial with regatta countdown sub-dial • Bidirectional ratcheting bezel with tritium pearl • Tonneau-shaped stainless steel case • Fluted pump chronograph pushers
- Movement and Function
- The Heuer Skipper Ref. 15640 is powered by the Heuer Calibre 15 automatic chronograph movement. This specific movement manages the central timekeeping and the regatta countdown function. The watch serves as a tool for yacht racing, with the sub-dial providing a 15-minute countdown display. The specific Mk. I configuration features numerals indicating the 10, 5, and 0-minute marks.
Identification
- Reference
- 15640
- Serial number
- 30XXXX
- 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: Minor cracking on the minute hand under U.V. inspection
- Research required: Historical light polish of the case