Omega Railmaster Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / China Explorer Red

Reference 2812.53.81

Omega Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / China Explorer Red

About this watch

The Omega Railmaster 2812.53.81 Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph is a masterpiece of horology that seamlessly blends elegance with functionality. This limited edition watch, part of the renowned Railmaster family, boasts a striking black dial adorned with indexes and arrow hands, exuding a classic yet modern look. The chronograph feature adds an athletic touch, making it suitable for both formal occasions and outdoor adventures. Crafted from durable stainless steel, this timepiece is resistant to corrosion and scratches, ensuring it will remain pristine for years to come. At the heart of this magnificent watch lies the Omega caliber 3313 movement, featuring a column wheel chronograph and Co-Axial escapement, hallmarks of Omega's commitment to precision and reliability.

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Key Features

42.20mm diameter stainless steel case
150m water resistance with sapphire crystal glass
Omega caliber 3313 automatic movement with Co-Axial escapement
Chronograph feature with column wheel mechanism
Limited edition of 86 units produced in 2011

Specifications

Brand

Omega

Family

Railmaster

Model

Seamaster Aqua Terra 150M Co-Axial 42.2 Railmaster Chronograph / China Explorer Red

Reference

2812.53.81

Movement

3313

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel
Co-Axial Escapement

Case

Stainless Steel 42.2mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

150

Current Listings

2025 Omega AT Railmaster Grey on Bracelet - Full Kit

Omega - 235.10.38.20.06.001 · $5,299

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

Posted at

Oct 26, 2025, 5:41 PM

Active

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Omega Railmaster 2503.52 (39.2mm) Full Set

Omega - 2503.52 · $3,150

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

Posted at

Oct 24, 2025, 9:53 AM

Active

View listing on r/WatchExchange

Omega Railmaster 36mm 2804.52.37 | serviced (Original Box & Papers)

Omega - 2804.52.37 · $5,301

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

Posted at

Oct 23, 2025, 10:17 AM

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Omega Seamaster Railmaster 40 mm, steel on steel - 2,599 USD

Omega - 220.10.40.20.06.001 · $2,599

A 40mm steel Omega Seamaster Railmaster, with a METAS-certified movement and 15 Bar water resistance.

Condition: Mint – Worn Twice
Case Size: 40mm diameter
Lug To Lug: 47mm
Thickness: 12.7mm

Posted at

Oct 21, 2025, 3:34 AM

Active

View listing on r/WatchExchange