Rolex Vintage Watches: Weekend Mood Collection

Key Points from the Discussion

• The Omega reference CK 859 is unusually documented with three different movements: cal 23.4, cal 26.5 SOB (subsidiary seconds), and cal 30T2. This makes identifying the correct movement for a specific CK 859 challenging.
• If the movement is marked 'cal 23.4 SC' (seconds central), it suggests a central seconds configuration, which conflicts with the CK 859 typically being a subsidiary seconds reference. This discrepancy raises questions about potential modifications or unique early production variants.
• jlc.thomsen theorizes that parts of his Omega's movement might have been modified or replaced during a restoration, potentially using components from a central seconds reference while retaining the original movement number on the bridges.
• A vintage shop owner reported that Omega's heritage department can be inconsistent, citing an instance where archives confirmed a '23.4 SC' movement for a 1939 CK 859 with a central seconds dial, despite the reference typically being subsidiary seconds.
• The discussion highlights the difficulty in definitively authenticating vintage Omega movements and references, especially when historical records or common knowledge present conflicting information.