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Omega Seamaster Railmaster CoAxial Master Chronometer Automatic 40mm Mens Watch
New and unworn. An inspection by our certified watchmakers guarantees authenticity.
Year 2025 Original papers CHRONEXT Certificate Original box
The original OMEGA Railmaster of 1957 was a practical yet elegant antimagnetic watch designed for railway staff or anyone who worked close to electrical fields. Today, that industrial spirit and innovation has been updated for a modern collection.
In this deniminspired model, the 40 mm symmetrical case is made from stainless steel with a waveedged design featured on the back. The vertically brushed blue jeans dial includes brushed stainless steel hands and recessed hourmarkers which are all filled with light grey SuperLumiNova. There is also a beige central seconds hand and transferred Railmaster indication which delivers a classic touch.
The watch has a stainless steel bracelet as well as an oriented caseback featuring a NAIAD LOCK design to keep the wording in position. The watch is driven by the OMEGA CoAxial Master Chronometer Calibre 8806, making it resistant to magnetic fields of 15,000 gauss.
Reference
220.10.40.20.03.001
Between lugs Open Case Measurement Modal
20 mm
Lugtolug Open Case Measurement Modal
47.0 mm
Thickness Open Case Measurement Modal
12.7 mm
Case diameter Open Case Measurement Modal
40 mm
Case
Steel
Dial colour
Blue
Crystal
Domed scratchresistant sapphire crystal with antireflective treatment on both sides
Water resistance
15 bar 150 metres 500 feet
Total product weight approx.
151 g
Calibre
Omega 8806
Movement Type
Self winding
Power reserve
55 hours
