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Found 14 watches matching "Cal.503" and 102 listings

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Found 102 listings matching "Cal.503"

[WTS] Longines Admiral 5 Stars Automatic Cal.503 | Great Condition (Serviced) | $600

Longines Admiral 5 Stars Automatic Cal.503 | Great Condition (Serviced) | $600

Longines - Cal.503 · $600
The Longines Admiral 5 Stars Automatic is a model produced from the mid-60s through the late 70s and celebrated for its balance of quality, design, and reliability.

  • Condition: Great, serviced condition
  • Movement: Longines Caliber 503 automatic movement
  • Dial condition: Clean with no marks
  • Crystal condition: Clear
Posted at
May 6, 2026, 12:54 AM
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[WTS] 1981 Rolex Oysterquartz Two Tone 18k Yellow Gold 36mm RSC Service Paper 17013 $5,550

1981 Rolex Oysterquartz Two Tone 18k Yellow Gold 36mm RSC Service Paper 17013 $5,550

Rolex - 17013 · $5,550
A 1981 Rolex Oysterquartz Two Tone 18k Yellow Gold watch featuring the iconic integrated bracelet and sharp case design, powered by a 11-jewel Caliber 5035.

  • Condition: Preowned - Good
  • Case diameter: 36mm
  • Material: 18k Yellow Gold
  • Bracelet links: 12
Posted at
May 3, 2026, 9:41 AM
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[WTS] IWC Big Pilot IW503604 Top Gun Perpetual Calendar Ceratanium Black Dial 46mm Complete Set

IWC Big Pilot IW503604 Top Gun Perpetual Calendar Ceratanium Black Dial 46mm Complete Set

IWC - IW503604 · $31,395
This IWC Big Pilot Top Gun Perpetual Calendar is a tactical complication watch with a stealthy aesthetic, featuring a perpetual calendar dial and seven-day power reserve.

  • Case Size: 46.2mm diameter
  • Movement Caliber: 52616
  • Power Reserve: 168 hours (7 days)
Posted at
May 1, 2026, 8:05 AM
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[WTS] Omega Seamaster Aqua Terra 2503.80.00 — Blue Sunburst Dial — 39.2mm — Fresh Service — $2,799 Shipped (Tariff Covered)

Omega Seamaster Aqua Terra 2503.80.00 — Blue Sunburst Dial — 39.2mm — Fresh Service — $2,799 Shipped (Tariff Covered)

Omega - 2503.80.00 · $2,799
This Omega Seamaster Aqua Terra features a blue sunburst dial and is powered by the Cal. 2500 Co-Axial automatic movement, recently serviced.

  • Condition: Excellent overall condition with normal signs of wear
  • Case diameter: 39.2mm
  • Case thickness: ~11.2mm
  • Lug width: 20mm
Posted at
Apr 30, 2026, 12:11 PM
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[WTS] Omega Seamaster 2503.30 Champagne Dial 39mm - $2,250 - Reserved Post for u/Financial_Match_1420

Omega Seamaster 2503.30 Champagne Dial 39mm - $2,250 - Reserved Post for u/Financial_Match_1420

Omega - 2503.30 · $2,250
Up for sale is my great condition Omega Seamaster 2503.30, measuring at 39mm with an automatic Omega Calibre 2500 movement.

  • Condition: Very good condition with minimal marks/hairlines
  • Case size: 39mm diameter
  • Movement: Omega Calibre 2500
  • Bracelet type: Original Omega steel bracelet
Posted at
Apr 27, 2026, 10:08 PM
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[WTS] 1981 Rolex Oysterquartz Two Tone 18k Yellow Gold 36mm 17013 $5,550

1981 Rolex Oysterquartz Two Tone 18k Yellow Gold 36mm 17013 $5,550

Rolex - 17013 · $5,550
A 1981 Rolex Oysterquartz Two Tone 18k Yellow Gold 36mm with an iconic integrated bracelet and sharp, angular case design. Powered by a 11-jewel, thermo-compensated Caliber 5035.

  • Condition: Good
  • Box And Papers: No
  • Links: 12 links (fits max 7.5 inch wrist)
  • Movement: 11-jewel, thermo-compensated quartz movement
Posted at
Apr 26, 2026, 10:38 AM
Active
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[WTS] IWC Big Pilot IW503604 Top Gun Perpetual Calendar Ceratanium Black Dial 46mm Complete Set

IWC Big Pilot IW503604 Top Gun Perpetual Calendar Ceratanium Black Dial 46mm Complete Set

IWC - IW503604 · $31,395
A heavyweight tactical complication watch featuring a perpetual calendar dial, seven-day power reserve, and Ceratanium case.

  • Movement: Mechanical (Automatic)
  • Caliber: 52616
  • Jewels: 54
Posted at
Apr 24, 2026, 8:27 AM
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[WTS] Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial - $2,490

Omega Aqua Terra 2503.80 Cal 2500 39mm Blue Dial - $2,490

Omega - 2503.80 · $2,490
Up for sale is my Omega Aqua Terra 2503.80 in great condition with a Calibre OMEGA 2500 Automatic movement and measuring at 39 mm.

  • Condition: great condition, minimal marks on case and bracelet
  • Case size: 39mm diameter
  • Bracelet type: original Omega steel bracelet
  • Movement type: Calibre OMEGA 2500 Automatic
Posted at
Apr 21, 2026, 9:04 PM
Expired
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[WTS] Omega Seamaster Railmaster 39mm - 2503.52- Price Reduced

Omega Seamaster Railmaster 39mm - 2503.52- Price Reduced

Omega - 2503.52 · $2,950
For sale is this amazing Omega Railmaster featuring a mechanical, self-winding movement with co-axial escapement and exhibition case back.

  • Condition: good, light wear on bezel, bracelet, and clasp
  • Movement: caliber 2403
  • Case diameter: 39mm
Posted at
Apr 18, 2026, 12:54 PM
Sold
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