Only Online Auction

Hong Kong, Mar 09, 2022

LOT 162

Ref. ST 186.004, quartz, electronic LCD (liquid crystal display) digital, multifunction, prototype glass dial, calibre 1621; “Speedmaster Professional Quartz” “Seamaster”; “ALASKA IV” prototype; stainless steel

HKD 51,000 - 102,000

EUR 5,800 - 11,600 / CHF 6,000 - 12,000 / USD 6,600 - 13,100

Sold: HKD 600,000

Stainless steel, quartz, vertical “tonneau”-shaped, gentleman’s wristwatch, water-resistant with snap-on case-back stamped with “Seamaster” logo, bezel with black insert; electronic LCD anthracite dial with central digital display, day indication underneath digital aperture, with multifunction, including:
· Time I - hours (12 or 24), minutes and seconds, and by a down-arrow day of week
· Time II - hours (12 or 24), minutes and date, as well as day of week by the down arrow
· 1/100 second chronograph, able to accumulate up to 23 hours 59 minutes and 59.99 seconds
· Split-second chronograph (as above)
· Lap time
· Split / stop of 2 consecutive times
· Light source for illuminating the display at night, powered by a separate battery
· Calendar programmed for leap years

Dial with LCD screen with two flat tritium stripes located behind that illuminate the display.

Grading System
Grade: AAA


Case: 3-8


Slightly scratched

Movement: 3*


Overhaul recommended, at buyer's expense

Dial: 3-01


HANDS Original

Brand Omega, Bienne / Biel

Model “Speedmaster Professional Quartz” “Seamaster”

Reference ST 186.004

Year circa 1978

Movement No. unnumbered

Case No. unnumbered

Material stainless steel

Bracelet brown leather strap

Buckle stainless steel Omega buckle

Diameter 35.2 mm. (bezel)

Caliber LCD 1621, 32 768 Hz (high precision unit manufactured by SSIH, with “BETA” light)

Height 42.2 mm.

Width 36.7 mm.

Signature dial, case and movement


The present watch is part of a batch especially developed to be tested by astronauts and Space Shuttle pilots around 1978, codenamed “ALASKA IV” at the time. It does not bear an engraved two-digit number on the case-back, indicating a model tested within the technical office of OMEGA ahead a of Houston, USA, delivery.

The LCD screen of the modified calibre 1621 was illuminated by two flat Tritium stripes instead of the regular bulb. The crystal of the present watch is original to its prototype state and omits the word “Light” at 3 o’clock that is found on the regular production models.


The purchase price payable by a buyer will be the sum of the final bid price plus the buyer’s premium, together with any applicable sales or compensating use tax. In addition to the hammer price, the buyer’s premium is payable as follows: 25% of the hammer price on each lot.

Important notice – Special conditions Please look carefully at all the photos as they are an integral part of the description. Any defect not mentioned in the descriptions but visible on the photos will be considered as described and cannot lead to any claim. The dimensions are given as an indication and may slightly differ from the measures mentioned by the manufacturers especially for contemporary watches. The photos are not retouched. Colors may differ from reality. For timepieces, we guarantee neither the functioning nor the precision of the movement, nor the water-resistance of the case. In addition, please note that movements, parts of mechanisms or cases may be incomplete. The lots are sold “as is”, described to the best of our knowledge and cannot be returned. Once the online bid is placed by the bidder, it cannot be cancelled.