Omega Vintage Seamaster Chrono / Cal.861 / 38 mm / Serviced / 1974


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Basic Info

Ref. No. 145.029
Movement Manual winding
Case material Steel
Bracelet material Leather
Year 1974
Condition 1 (mint)
Location Germany, München
Price 2,400 € (= $2,609)
Availability Available now


Movement Manual winding
Movement/Caliber Cal.861
Base Caliber Cal.321
Power reserve 40 h
Number of jewels 17
Frequency 21600 A/h


Case material Steel
Case diameter 38 x 50 mm
Waterproof Not Waterproof
Material bezel Steel
Glass Plastic
Dial Blue
Dial numerals No numerals


Bracelet material Leather
Bracelet color Brown
Lug width 22 mm Size guide
Clasp Buckle
Clasp material Steel




Center Seconds, Small Seconds, Luminescent Hands, Only Original Parts


Bullet-proof tonneau-shaped Omega Seamaster in stainless steel powered by famous caliber 861 (used also since 1969 in Omega Speedmaster ‘Moonwatch”) with eye-catching blue dial with ‘racing’ hands.

The watch went through complete overhaul/service in May 2016.

Manufacturer: Omega, Switzerland
Model: Seamaster
Reference: 145.029
Type: Manual-winding chronograph
Year of production: ca.1974
Case type: 2-body, with screw-back, satin and mirror finishing.
Case material: Stainless steel
Case measurement: 38 mm (without crown) / 50 mm (lug-to-lug) / 22 mm (between lugs)
Case serial number: n/a
Case back: Screw-back, signed ‘Omega Watch Co’ and ‘Fab.Suisse Swiss Made Acier Inxoydable’ on the inner side. Signed ‘Seamaster’, with Omega logo and engraved sea monster on the outer side.
Crown/pushers: Steel fluted crown signed with Omega logo and steel round pushers.
Crystal: Plastic, replacement crystal.
Movement type: Precise manual-winding chronograph
Movement model: Famous Cal.861 signed ‘Omega’ and ‘Swiss Made’. Gold-plated, 17 Jewels, 21600 A/h, 40 hours of power reserve.
Movement serial number: 32206060
Dial: Amazing blue dial decorated with white tachymeter scale on the outer perimeter of the dial, with white printed minute and seconds scales, printed luminous ‘baton’ hour markers. Minutes counter subsidiary dial at 3 o’clock, 12-hours counter subsidiary dial at 6 o’clock and small seconds subsidiary dial at 9 o’clock. Signed ‘Omega Seamaster’ along with printed orange Omega logo at 12 o’clock.
Hands: Orange luminous ‘racing’ hour and minute hands. White sweep seconds hand. White minutes and hours counters’ hands. Orange small seconds hand.
Case condition: 2 (fine), polished. Showing significant traces of use, scratches on the bezel and the caseback.
Movement condition: 1 (mint) only original parts, adjusted and keeps good time. All functions work properly.
Dial/hands condition: 0 (unworn) to 1 (mint) Untouched and mint. All original dial and hands in immaculate condition.
Overall condition: 2 (fine)
Delivery set: The watch comes with genuine leather strap, with company’s warranty certificate, company’s box and general terms and conditions.
Warranty: 1-year technical warranty

Payment: We accept bank transfers and credit cards
Delivery: We ship with UPS & TNT (fully insured). Contact us for quote.
Refund policy: 14 days
Reputation: We’ve been Trusted Seller on Chrono24 since 2014 and member of professional Watch Traders Association. Google VintageCaliber for more information!

Size guide for wristbands

1 | Lug width

The lug width is the width of the strap at the end that is attached to the watch. This is the interior distance between the two lugs (horn-like protrusions) on the watch casing. The strap will fit your watch only if the lug width of the watch is the same width as the strap.

2 | Buckle width

The buckle width is the width of the strap at the buckle end. If you want to keep your watch’s original buckle and replace only the strap, the width of the original buckle must be identical to the strap width. For watches with folding clasps, please choose a strap specially made for your particular clasp.

3 | Strap length

The strap length is the combined length of the short strap side 3A (without buckle) and the long strap side 3B. For metal straps, the length of the strap including the clasp is measured in the closed position.

4 | Strap thickness

Strap thickness is the height of the strap. Many leather straps thin out towards the buckle end, or “taper”. If you want to keep your watch’s original buckle and replace only the strap, the strap thickness must match the height of the original buckle. For watches with folding clasps, please choose a strap specially made for your particular clasp.