Omega Vintage Speedmaster Mark 125 / Chronometer / 1973 / Mint


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Basic Info

Ref. No. 3780801 / 1780002
Movement Automatic
Case material Steel
Bracelet material Steel
Year 1973
Condition 1 (mint)
Gender Men's watch/Unisex
Location Germany, München
Price 3,000 € (= $3,193)
Availability Available now


Movement Automatic
Movement/Caliber Cal.1041
Base Caliber Lemania 1341
Number of jewels 22
Frequency 28800 A/h


Case material Steel
Case diameter 43 x 51 mm
Waterproof Not Waterproof
Material bezel Steel
Glass Mineral Glass
Dial Black
Dial numerals No numerals


Bracelet material Steel
Bracelet color Steel
Clasp Double-fold clasp
Clasp material Steel


Chronograph, Date, Tachymeter


Center Seconds, Small Seconds, Luminescent Hands, Chronometer, Limited Edition, Only Original Parts, Luminous indexes


Massive, charismatic, precise but still underrated timepiece built by Omega in 1973 to commemorate its' 125th anniversary. Back in that time, this watch was truly innovative and apparently a right choice to mark all Omega's achievements over its' long history. The Mark 125 was the very first automatic chronograph officially certified as a chronometer in Switzerland. This particular piece is preserved in outstanding condition - with possibly unpolished case and mint integrated bracelet showing minor traces of use. It features immaculate black/dark gray dial with intact tritium markers and perfectly mint handset.

Manufacturer: Omega, Switzerland
Model: Speedmaster Mark 125
Reference: 3780801 / 1780002
Type: Automatic chronometer chronograph
Year of production: ca.1973
Case type: 3-body, with screw-back, satin and mirror finishing. Correct tachymeter bezel in mint condition.
Case material: Stainless steel
Case measurement: 42 mm (without crown) / 51 mm (lug-to-lug) / Integrated lugs
Case serial number: n/a
Case back: Screw-back, brushed finishing, signed "Fab.Suisse Swiss Made" and "Acier Inoxydable", signed with reference and patent numbers on the inner part of the caseback. Signed with Speedmaster logo on the outer side of the caseback.
Crown/pushers: Original steel fluted crown signed with Omega logo. Original pushers.
Crystal: Original mineral crystal in mint condition, showing some micro scratches.
Movement type: Precise automatic chronometer chronograph
Movement model: Famous Cal.1041 based on Lemania 1341 signed "Omega Swiss" on the rotor, and "22 Jewels Adjusted to 5 positions and temperature" on the bridge. Gold-plated, 22 Jewels, 28800 A/h, 40 hours of power reserve.
Movement serial number: 38291934
Dial: Black dial decorated with white printed seconds/minutes track on the outer perimeter and tritium hour markers. Signed "Omega Speedmaster 125" at 12 o'clock, signed "Automatic Chronometer" at 6 o'clock. Signed "T Swiss Made T" at 6 o'clock. Hour counter's subsidiary dial at 6 o'clock, 24-hours indication and small seconds subsidiary dial at 9 o'clock. Date aperture at 3 o'clock.
Hands: White luminous (tritium) hour and minute hands, white chrono sweep seconds/minutes hands. White counters' hands.
Case condition: 1 (mint), Probably unpolished, showing almost no traces of use.
Movement condition: 1 (mint) only original parts, adjusted and keeps good time. All functions work properly. Presumably, the last known service was performed at least 6 years ago and then the watch was never worn.
Dial/hands condition: 1 (fine) Original dial in outstanding condition with yellowish tritium. Original hands in outstanding mint condition.
Overall condition: 1 (mint)
Delivery set: The watch comes with original integrated Omega bracelet ref.1221/212 fitting a wrist of maximum 19 cm. and suede watch holder. It also comes with our company’s warranty certificate and general terms and conditions.
Warranty: 1-year technical warranty

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