Vintage Omega Seamaster 600 Steel Silver Dial 1966 Serviced 03/2026 [REF. 135,011]

Classic Seamaster 600 with a recent service

The Omega Seamaster 600 Ref. 135.011 from 1966 is a classic vintage watch from the popular Seamaster series. With its silver dial , elegant stainless steel case , and timeless design, it embodies the typical Omega aesthetic of the 1960s.

This watch was recently serviced in March 2026 , during which the movement was cleaned, oiled, and regulated. As a result, the watch offers reliable timekeeping performance and is ready for immediate use.

Another attractive detail is the original signed Omega acrylic glass , which underlines the authentic vintage character of the watch.

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Condition

• Case: Very Good
• Glass: Mint (original signed)
• Timing Performance: Very Good
• Work: Very Good
• Bracelet: Mint
• Dial: Very Good
• Case back: Very Good

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Work completed (03/2026)

• Factory cleaned & oiled
• factory regulated
• Professionally cleaned and inspected

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Technical data

• Brand: Omega
• Model: Seamaster 600
• Reference: 135.011
• Year of construction: 1966
• Diameter: 35 mm
• Strap lug width: 18 mm
• Weight: 40 g
• Housing material: Stainless steel
• Dial: Silver
• Glass: Original Omega signed acrylic glass
• Water resistance: No guarantee / not tested
• Bracelet length: 23.5 cm

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clockwork

• Movement: Omega Cal. 601
• Type: Manual winding
• Power reserve: approx. 48 hours
• Rate deviation: +6 s/day
• Amplitude: 246°
• Beat Error: 0.1 ms

The Omega Calibre 601 is a proven hand-wound movement from the 1960s, known for its robust construction, ease of maintenance and reliable timekeeping.

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Scope of delivery

• The clock
• Transport box
• In-house certificate of authenticity

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Conclusion

The Omega Seamaster 600 Ref. 135.011 from 1966 is an elegant vintage watch with a classic design and reliable manual-winding movement. Thanks to a recent service, original signed crystal, and very good condition, it is an attractive choice for collectors and enthusiasts of classic Omega watches.