Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster / Bracelet
Reference 2502.52.00
About this watch
The Omega Railmaster 2502.52.00 is a luxury watch that beautifully marries functionality with style. This stunning timepiece features the Omega Caliber 2403 movement, which boasts Co-Axial escapement technology for enhanced accuracy and reduced friction between moving parts. The case is crafted from stainless steel, giving it a robust yet refined appearance, while the black dial features a classic, clean design with mixed indexes that create a sense of depth and sophistication. With a water resistance of up to 150 meters, this watch can handle any situation, whether you're swimming or caught in the rain. The sapphire glass enhances durability while providing a crystal-clear view of the dial. This watch is perfect for any occasion, from formal events to casual outings, thanks to its versatility and reliable performance.
Key Features
- Omega Caliber 2403 movement
- Co-Axial escapement technology
- Stainless steel case
- Black dial with mixed indexes
- 150m water resistance
- Sapphire glass
Specifications
- Brand
- Omega
- Family
- Railmaster
- Model
- Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster / Bracelet
- Reference
- 2502.52.00
- Movement
- 2403
- Movement Features
-
- Hours, Minutes, Seconds
- Co-Axial Escapement, Chronometer
- Case
- Stainless Steel 42.2mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 150
Current Listings
![[WTS] 2025 Omega Seamaster Railmaster 235.12.38.20.06.001](https://preview.redd.it/ru7sqh1hcgzf1.jpeg?auto=webp&s=7e5544cdfc14a81c97cc5fba75b202190599926d)
2025 Omega Seamaster Railmaster 235.12.38.20.06.001
A 2025 Omega Seamaster Railmaster in excellent condition, featuring a clean sapphire crystal and black dial, powered by an automatic Calibre 8806 Master Chronometer movement.
- Condition: Excellent condition overall, minimal wear on stainless steel case
- Case size: 38mm diameter
- Movement type: Automatic
![[WTS] Omega Seamaster Railmaster XXL 2806.52.37](https://preview.redd.it/gqvfxatraczf1.jpg?width=640&crop=smart&auto=webp&s=9332eb2b7dfa913236523132873edb9b877dcac1)
Omega Seamaster Railmaster XXL 2806.52.37
A large watch suitable for the larger gentleman, featuring a modified Unitas movement and excellent lume.
- Condition: Overall good condition, used strap
- Case Size: 49.2mm diameter
- Movement: Omega 2201, modified Unitas movement
- Water Resistance: 150m depth rating
![[WTS] 2000s Omega Seamaster Aqua Terra Railmaster 36mm ref. 2504.52](https://preview.redd.it/6f7rza5uzwyf1.jpg?width=640&crop=smart&auto=webp&s=df06f26b160983b551676e501c461a2e518e17b2)
2000s Omega Seamaster Aqua Terra Railmaster 36mm ref. 2504.52
A 2000s Omega Seamaster Aqua Terra Railmaster 36mm with a stainless steel case and black dial. The watch features an automatic movement, Super-LumiNova lume, and a sapphire crystal.
- Condition: Normal wear in the form of a few hairlines, faint scratches, and tiny nicks throughout, some micro patina on hands
- Case Material: Stainless steel
- Diameter: 36 mm
- Lug Width: 19 mm
![[WTS] Omega Railmaster](https://preview.redd.it/z9yfb7lh3pyf1.jpg?width=640&crop=smart&auto=webp&s=9bdeba50ff4ce6d5521c7ab74af53e1f7dd648d9)
Omega Railmaster
This Omega Seamaster Railmaster is a recently discontinued model that includes full kit and undated warranty card, sold with original box.
- Condition: Pre-owned with small mark near 1 o'clock on case
- Case size: 40mm diameter
![[WTS] Omega Railmaster 2503.52 (39.2mm) Full Set -Reduced](https://external-preview.redd.it/dm50bGYxZWh2Z3lmMQfhUOAUty__3AJshyNDb8hjAYxLjw1Pd2lap5ndE-KN.png?format=pjpg&auto=webp&s=e6f96e0ab54c0b084b7c39a883d3841defc61aa6)
Omega Railmaster 2503.52 (39.2mm) Full Set -Reduced
This Omega Railmaster is a 39.2mm watch with Cal. 2403 movement and 44-hour power reserve.
- Condition: great condition
- Case Diameter: 39.2mm
- Thickness: 11mm
- Lug To Lug Length: 47mm
![[WTS] Omega Seamaster Railmaster 39mm 2503.52 $2,600 2403 Movement](https://preview.redd.it/x1b9i1y01fyf1.jpg?width=640&crop=smart&auto=webp&s=dc980a23bfcf8f725af6cb653d2c2877be635edf)
Omega Seamaster Railmaster 39mm 2503.52 $2,600 2403 Movement
This Omega Seamaster Railmaster is a 39mm model with the 2403 movement.
- Movement: 2403
![[WTS]🔥OMEGA RAILMASTER 235.10.38.20.06.001 38MM 2025 COMPLETE🔥](https://preview.redd.it/o369o1jwg5yf1.jpg?width=640&crop=smart&auto=webp&s=c47c3303819e7af130950ce57ab19c5653900503)
![[WTS] Omega Railmaster](https://preview.redd.it/bxqbil4u93yf1.jpg?width=640&crop=smart&auto=webp&s=e61129f6e12f050583eaca3d7f5d106b8c59e98c)
![[WTS] 2025 Omega AT Railmaster Grey on Bracelet - Full Kit](https://preview.redd.it/xrjglyezzixf1.jpg?width=640&crop=smart&auto=webp&s=82ed229fe28b3214ece5a9fd5fff1184e525b6fc)
2025 Omega AT Railmaster Grey on Bracelet - Full Kit
Up for sale is Omega's newest version of the Railmaster in grey, featuring an in-house automatic Co-Axial Master Chronometer Calibre 8806 with a 55-hr power reserve.
- Condition: near-mint
- Case Dimension: 38 mm diameter
- Lug Width: 19 mm
- Thickness: 12.4 mm