The Omega Seamaster Aqua Terra 2603.52.31 is an uncommon 18k yellow gold version of Omega's 2003-2010 Railmaster, with a 39.20mm case containing self-winding caliber 2403.
Movement Type
Automatic
Caliber
2403Jewels
27
Reserve
48
Frequency
25200
Hands
Center Seconds
Shape
Round
Lug Distance
20.00 mm
Material
Yellow Gold
Glass
Sapphire
Diameter
39.20 mm
Water Resistance
150.00 m
Dial Color
Black
