Search Results

Found 14 watches matching "Cal.503" and 111 listings

Grid List

Related Listings

Found 111 listings matching "Cal.503"

[WTS] Seiko Prospex Alpinist SPB503 | Cal. 6R55 | 200M | Teal Blue-Green Dial | Rotating Compass Bezel | Brand New Full Set | $740

Seiko Prospex Alpinist SPB503 | Cal. 6R55 | 200M | Teal Blue-Green Dial | Rotating Compass Bezel | Brand New Full Set | $740

Seiko - SPB503 · $740
The Seiko Prospex Alpinist SPB503 is a brand new 8th-generation watch featuring a teal blue-green dial and rotating compass bezel. It measures 39.5mm in stainless steel with a super-hard Diashield coating and runs on the upgraded Caliber 6R55 automatic movement.

  • Condition: Brand new
  • Case size: 39.5mm diameter
  • Depth rating: 200m
  • Movement: Caliber 6R55
Posted at
May 20, 2026, 9:52 PM
Sold
Sold
[WTS] Omega Seamaster Aqua Terra 39mm | Ref. 2503.3 | Cal. 2500 Co-Axial Chronometer | Silver Dial | $2,150 REDUCED PRICE

Omega Seamaster Aqua Terra 39mm | Ref. 2503.3 | Cal. 2500 Co-Axial Chronometer | Silver Dial | $2,150 REDUCED PRICE

Omega - 2503.3 · $2,150
This Omega Seamaster Aqua Terra Co-Axial Chronometer 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. It features a silver dial with raised index hour markers and luminous hands.

  • Condition: Great condition
  • Movement: Caliber 2500 Co-Axial automatic movement (COSC-certified)
  • Bezel material: Stainless steel
  • Bracelet size compatibility: Up to a 7.25-inch wrist
Posted at
May 20, 2026, 9:44 PM
Sold
Sold
[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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Active
View listing on r/WatchExchange
[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
Expired
View listing on r/WatchExchange