Vintage Rare Heuer Watch 1980 Lemania 5100 Pewter 510-503

$ 2,900.00
Current Stock:

Vintage Rare Heuer Watch 1980 Lemania 5100 Pewter 510-503

1980's Excellent condition very hard to find in vintage watches, no deep nicks, very rare and collectable.

Display Functions:

  • Hour, Minute, Small Seconds at 9 o'clock, 24-hour (military time) indicator, Date, Chronograph with central minutes counter and 12-hour counter


  • Stainless Steel TONNEAU-SHAPED Case with Parkerized finish in a silver/grey color, known as the "Pewter" finish by Heuer collectors
  • Sapphire crystal scratch resistant 
  • Case back solid with Heuer logo
  • Case: 41.3mm x 45.7mm TONNEAU SHAPED CASE, ADAPTED FROM HEUER'S "PASADENA"MODEL (a Valjoux 7750-based model) to accommodate Calibre 5100
  • Thickness: 16mm
  • Crown: Steel screw down fluted
  • Water Resistant/Shock Resistant: not recommended for a vintage watch


  • Fixed with Tachymeter scale on Beveled Flange


  • Stainless Steel Bracelet "Pewter" finish
  • Deployant folding with Double safety clasp

Dial/ Hands:

  • "Pewter" Dial
  • Luminous filling baton numerals
  • Black Hands, luminous
  • Orange Chronograph hands
  • Painted black minute track
  • Date at 3 o'clock in white


  • Mechanical Automatic 
  • Calibre 5100

Lemania developed Calibre 5100 with Omega circa 1974. Omega named the movement Calibre 1045, and produced a series of Speedmaster Automatic chronographs between 1974 and 1988 that employed this calibre.

The 5100 is a particularly rugged but accurate calibre used mostly in military and space applications. The 5100 was the only calibre that met their military requirements. Among the brands who supplied Calibre 5100 military chronographs under contract were Sinn, Fortis, Hamilton, Orfina, and Tutima 

SHOCK RESISTANCE: Due to its construction, Calibre 5100 was the only chronograph movement that can withstand large shocks without its chronograph seconds hand stopping. This is because its chronograph mechanism is driven directly unlike most other chronographs which use an intermediate wheel. The calibre easily withstands acceleration in excess of 7G without appreciable loss of accuracy. The calibre also maintains its accuracy over long periods without servicing. Service intervals from four to seven years have shown to be sufficient.

The dial on the 5100 has a central chronograph elapsed minutes counter that is easier to read at a glance unlike chronographs which register elapsed minutes on a subdial.

There is also 24-hour (military time) indicator at the 12 o’clock position.

Because of the central chronograph minutes hand, the 5100 dial is extremely legible, and in effect provides a large 60-minute elapsed minutes register instead of the usual 30-minute subdial elapsed minutes register. Along with the movement's exceptional shock resistance, its legibility was what made these watches particularly useful for military conditions.


We provide warranty coverage of 1 year from the date of purchase on all pre-owned watches that we sell, and 2 years on all new items. Our warranty covers the watch movement only. We do not cover batteries, cases, bracelets, straps, crystals, finishes or damages caused by wear and tear or physical abuse. Customer will be responsible for all shipping charges.