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Found 14 watches matching "Cal.503" and 109 listings

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Found 109 listings matching "Cal.503"

[WTS] Omega Seamaster Aqua Terra First Gen 39.2mm Black Dial — Ref. 2503.50.00 | Fresh Service | $2,599 Shipped

Omega Seamaster Aqua Terra First Gen 39.2mm Black Dial — Ref. 2503.50.00 | Fresh Service | $2,599 Shipped

Omega - 2503.50.00 · $2,599
First-generation Omega Seamaster Aqua Terra ref. 2503.50.00, featuring a 39.2mm case and elegant glossy black dial. Powered by the reliable Omega Co-Axial Cal. 2500, this watch represents a perfect balance between dress watch refinement and everyday versatility.

  • Condition: very good condition overall
  • Case size: 39.2mm
  • Lug-to-lug length: ~46mm
  • Thickness: ~11.5mm
Posted at
May 19, 2026, 10:37 AM
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[WTS] Rare Omega Seamaster 300 Ref 196.1503 Cal 1538 (James Bond) Stainless steel Men Watch $1750

Rare Omega Seamaster 300 Ref 196.1503 Cal 1538 (James Bond) Stainless steel Men Watch $1750

Omega - 196.1503 · $1,750
This is a rare Omega Seamaster 300 Ref 196.1503 Cal 1538, a James Bond watch made of stainless steel. It has a quartz movement and measures 41mm in case width.

  • Condition: Preowned, with little wear and marks
  • Case Width: 41mm (without crown)
  • Band Material: Stainless steel
  • Max Wrist Size: 19cm
Posted at
May 17, 2026, 9:29 PM
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[WTS] Omega Seamaster Aqua Terra 2503.80.00 “First Gen” 39mm — Blue Sunburst Dial — Cal. 2500 Co-Axial — Fresh Service — $2,699 Shipped

Omega Seamaster Aqua Terra 2503.80.00 “First Gen” 39mm — Blue Sunburst Dial — Cal. 2500 Co-Axial — Fresh Service — $2,699 Shipped

A first-generation Omega Seamaster Aqua Terra with a beautiful blue sunburst dial and the reliable Cal. 2500 Co-Axial Chronometer movement.

Posted at
May 14, 2026, 11:43 AM
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[WTS] Rolex Date 1503 from 1978. Excellent condition, serviced and pressure tested. $6300 Shipped from california.

Rolex Date 1503 from 1978. Excellent condition, serviced and pressure tested. $6300 Shipped from california.

Rolex - Date 1503 · $6,300
This is a Rolex Date from 1978, in excellent condition after servicing and pressure testing.

  • Condition: Excellent
  • Year: 1978
  • Serviced: yes, serviced
  • Location: California
Posted at
May 13, 2026, 2:29 PM
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[WTS] Omega Seamaster Aqua Terra 39mm | Ref. 2503.3 | Cal. 2500 Co-Axial Chronometer | Silver Dial | $2,199

Omega Seamaster Aqua Terra 39mm | Ref. 2503.3 | Cal. 2500 Co-Axial Chronometer | Silver Dial | $2,199

Omega - 2503.3 · $2,199
A timeless, understated piece that measures 39mm in stainless steel and is powered by Omega’s Caliber 2500 Co-Axial automatic movement, COSC-certified to +6/-4 seconds per day precision. The watch features a silver dial with raised index hour markers and luminous hands.

  • Condition: great condition
  • Material: stainless steel
  • Water Resistance: 150m
  • Movement: Caliber 2500 Co-Axial automatic movement
Posted at
May 12, 2026, 10:10 PM
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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 with an iconic integrated bracelet and angular case design, powered by the Caliber 5035.

  • Condition: Preowned - Good
  • Case size: 36mm
  • Bracelet material: 18k Yellow Gold
  • Movement type: Thermo-compensated Quartz
Posted at
May 11, 2026, 9:47 AM
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[WTS] Omega Seamaster 2503.80.00 “First Gen Aqua Terra” 39.2mm — Blue Sunburst Dial — Cal. 2500 Co-Axial (Fresh Service) — $2,750 Shipped (Tariff Covered)

Omega Seamaster 2503.80.00 “First Gen Aqua Terra” 39.2mm — Blue Sunburst Dial — Cal. 2500 Co-Axial (Fresh Service) — $2,750 Shipped (Tariff Covered)

Omega - 2503.80.00 · $2,750
A First Gen Aqua Terra Omega Seamaster with a blue sunburst dial and Cal. 2500 co-axial movement, recently serviced.

  • Case Size: 39.2mm
  • Movement: Calibre 2500 co-axial
  • Service Status: Fresh Service
Posted at
May 7, 2026, 10:36 AM
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[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
Expired
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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
Expired
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