1975 Heuer Montreal Ref.750.503

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14-days Inspection Period / 1-year Warranty

Delivery: ca.10 days

A very attractive classics from the 70s by Heuer. The Montreal series offered a massive yet very wearable 2-piece steel case coupled with high-contrast black dial focused on readability and functionality. Powered by automatic hi-beat Valjoux 7750, this timepiece offers a great combination of precision, reliability, and functionality of a chronograph and day/date indication.

This particular piece is notable for an exceptionally detailed case and a near-NOS black dial. Great piece, great "daily beater", great value for money!

Fully serviced in May 2018. Technical warranty: 1 year.


  • Mint stainless steel 2-body case with screw-down case back
  • Professionally detailed to Heuer factory specs
  • 42.5 mm (without crown) / 52 mm (lug-to-lug) / 20 mm (between lugs)
  • Correct integrated bezel in mint condition
  • Replacement winding crown
  • Original pushers
  • Original crystal in excellent condition
  • Reference: 750.503


    • Automatic chronograph with day and date indication
    • Caliber Valjoux 7750 signed Heuer Leonidas SA
    • Rhodium-plated, 17 Jewels, 28800 A/h, 46 hours of power reserve.
    • Good condition. Fully serviced in May 2018.


    • Original untouched dial in excellent condition showing no visible aging
    • Signed "Heuer Montreal Automatic" at 3 o'clock and "Swiss Made" at 6 o'clock.
    • Original correct hands in excellent condition.
    • Lume is intact and shows no aging

    Delivery set:

    • The watch with generic leather strap and buckle
    • Our company’s warranty certificate, invoice and general terms and conditions.

    Collections: Watches

    Category: Heuer

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    Sizing Product

    Measuring a watch

    It is always crucial to understand the size of the watch, especially when it comes to vintage watches which are generally considered as too small in comparison with what watch industry offers today. For example, the original Patek Philippe Calatrava introduced in the 1930s was only 31 mm in diameter, while today's classic Calatrava is 39 mm. When you think about 8 mm, it doesn't seem to be a big difference, but believe it is.

    In our condition reports we normally disclose three most important parameters as follows: diameter without crown / lug-to-lug length / lug width. 

    Diameter without crown

    It is, so far, the most important measurement to understand the size of a regular round-shaped watch.It helps you to understand proportions and overall look of the watch. It is important to consider width of the bezel and color of the dial, because certain combinations may make the watch look bigger, while some other smaller. It is all very individual, however there is common understanding:

    Lug-to-lug width

    This parameter will help you to understand whether the watch is comfortable for wearing. You should compare lug-to-lug width with the width of your wrist, and if lug-to-lug width is smaller or equal, then this watch shall be comfortable.

    Lug width

    This measurement is defining what size of strap you need for the particular watch. Depending on era and manufacturer you can find watches with lug width between 14 mm and 24 mm. Most common sizes are 18 mm and 20 mm.