Omega Railmaster Seamaster Aqua Terra 150M Automatic 42.2 Railmaster Chronograph / Brown Alligator
Reference 2812.52.37
About this watch
The Omega Railmaster 2812.52.37 Seamaster Aqua Terra 150M Automatic 42.2 Chronograph is a masterpiece of luxury watchmaking, combining stunning design with robust performance and rich heritage. Its round stainless steel case measures 42.2 mm, featuring a black dial with mixed indexes and arrow hands, providing exceptional readability. The Omega caliber 3205 self-winding chronograph movement is a marvel of engineering, delivering smooth, precise chronograph functionality and exceptional accuracy. With a water resistance rating of 150 meters, this watch can handle anything life throws at it. Its brown alligator leather strap adds a touch of luxury and comfort, making it the perfect companion for any occasion.
Key Features
- 42.2mm round stainless steel case
- Black dial with mixed indexes and arrow hands
- Omega caliber 3205 self-winding chronograph movement
- 150m water resistance rating
- Brown alligator leather strap
- Sapphire glass cover for durability and scratch resistance
Specifications
- Brand
- Omega
- Family
- Railmaster
- Model
- Seamaster Aqua Terra 150M Automatic 42.2 Railmaster Chronograph / Brown Alligator
- Reference
- 2812.52.37
- Movement
- 3205
- Movement Features
-
- Hours, Minutes, Small Seconds
- Chronograph, Column wheel
- Case
- Stainless Steel 42.2mm
- Dial Color
- Black
- Crystal
- Sapphire
- Water Resistance
- 150
Current Listings
![[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]馃敟OMEGA RAILMASTER 235.10.38.20.06.001 38MM 2025 COMPLETE馃敟](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
![[WTS] Omega Railmaster 2503.52 (39.2mm) Full Set](https://external-preview.redd.it/cjM2ZXJrZnVlMnhmMQfhUOAUty__3AJshyNDb8hjAYxLjw1Pd2lap5ndE-KN.png?format=pjpg&auto=webp&s=35fa29e916ae4449dd4261b4c91d0042ecc4316a)
Omega Railmaster 2503.52 (39.2mm) Full Set
39.2mm Railmaster with Cal. 2403 movement and 44HRs power reserve.
- Condition: Great condition, no service history
- Case Diameter: 39.2mm
- Thickness: 11mm
- Lug To Lug: 47mm
![[WTS] Omega Railmaster 36mm 2804.52.37 | serviced (Original Box & Papers)](https://preview.redd.it/omyrjc44evwf1.jpg?width=640&crop=smart&auto=webp&s=75eb4481ffef0afaef63819e9f8198854e42407a)
Omega Railmaster 36mm 2804.52.37 | serviced (Original Box & Papers)
The Omega Railmaster is an iconic watch with a no-nonsense dial design that has remained largely unchanged since 1957.
- Condition: recently serviced
- Case size: 36mm
- Dial type: 3-6-9