Wristwatch · Electronic diver's prototype wristwatch

Omega Seamaster 1000 Prototype

Partially verified

This electronic diver's prototype wristwatch by Omega, dated by an Extract from the Archives to 1974, features a 50.5 mm stainless steel case housing a quartz caliber 1220 movement. Catalogued as a working pre-series model prepared by Omega's Test & Prototyping department, the watch includes a revolving black Bakelite bezel calibrated for dive timing and a date aperture at 3 o'clock. The black dial is signed 'ELECTRONIC f 300 Hz' and displays a blue hour arrow hand, an orange minute hand, and a green hour plot at 5 o'clock. The piece is fitted to an Isofrane black rubber strap with an Omega buckle.

Front view of the Omega Seamaster 1000 prototype showing the black dial, Bakelite bezel, and Isofrane rubber strap — Phillips. Rights pending — permission not yet requested. Original source

Catalogue identity

Source: www.phillips.com
Category: Wristwatch · Electronic diver's prototype wristwatch
Maker / attribution: Omega
Reference: Not recorded
Catalogue / lot identifier: 937
Source-reported date: 1974
Country: Switzerland
Source-reported serial: 00003748

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Physical Characteristics

The watch is housed in a 50.5 mm stainless steel case described as a cushion or rounded tonneau monoblock-style with hooded lugs. The assembly features a rotating black Bakelite bezel, which includes luminous numerals, baton markers, and a red Omega logo triangle at the 12 o'clock position.

The timepiece is fitted with a vented black rubber Isofrane strap characterized by rectangular perforations, fastened with an Omega buckle.

Evidence for this section

“Dimensions 50.5mm. Diameter”
“Cushion or rounded tonneau stainless steel monoblock-style case with hooded lugs.”
“Rotating black Bakelite bezel with luminous numerals, baton markers, and a red Omega logo triangle at 12 o'clock.”
“Vented black rubber Isofrane strap with rectangular perforations.”

Dial and Movement

The black dial displays the text 'OMEGA ELECTRONIC f 300 Hz' and 'Seamaster 1000 m/3500 ft PROFESSIONAL'. It features an oversized orange minute hand, a blue arrow hour hand, a white-tipped sweep seconds hand, and a framed date window at 3 o'clock. A light green plot is present at the 5 o'clock position.

The watch utilizes a caliber 1220 movement. The cataloguing notes that the green plot at 5 o'clock is of uncertain origin, potentially a repair or a prototype specification.

Evidence for this section

“Black dial marked 'OMEGA ELECTRONIC f 300 Hz' and 'Seamaster 1000 m/3500 ft PROFESSIONAL'.”
“Prominent blue arrow hour hand, oversized orange minute hand, and white-tipped sweep seconds hand.”
“Framed date window at 3 o'clock showing the numeral 9.”
“Applied rectangular hour markers, with a contrasting light green plot at 5 o'clock.”
“Calibre Quartz, cal. 1220”
“The green five plot may be a repair, or a possible requirement for the watch”

Provenance and Prototype Status

Dated to 1974 by an Extract from the Archives, this piece is identified as a 'pre-series' model produced by Omega's 'Test & Prototyping' department. It was reportedly intended for testing by the firm Underwater Contractors.

The watch lacks a screw-down crown. The source indicates that due to this feature, it may not have been used in actual underwater field tests, though it is described as a working model.

Evidence for this section

“Extract from the Archives confirming production of the present watch in 1974”
“The dial is an interesting study as it was made by the Omega “Test & Prototyping” department.”
“It has been described as a “pre-series””
“This watch lacks a screw-down crown and therefore may not actually have been use in field tests”

Open research questions

What specific technical documentation exists regarding the 'Test & Prototyping' department's specifications for the green plot at 5 o'clock?
Are there records from Underwater Contractors confirming the intended testing parameters for this specific serial number?

Source evidence

Recorded claims and source quotations for Omega Seamaster 1000 Prototype
Field	Source-reported value	Source quotation
Movement number	00003748	“Movement No 00003748”
Calibre	Quartz, cal. 1220	“Calibre Quartz, cal. 1220”
Case material	Stainless steel	“Material Stainless steel”
Dimensions	50.5mm. Diameter	“Dimensions 50.5mm. Diameter”
Strap	Isofrane rubber strap	“Bracelet/Strap Isofrane rubber strap”
Production year	1974	“Year 1974”
Movement number	00003748	“Movement No 00003748”

Visible details

Cushion or rounded tonneau stainless steel monoblock-style case with hooded lugs.
Rotating black Bakelite bezel with luminous numerals, baton markers, and a red Omega logo triangle at 12 o'clock.
Black dial marked 'OMEGA ELECTRONIC f 300 Hz' and 'Seamaster 1000 m/3500 ft PROFESSIONAL'.
Prominent blue arrow hour hand, oversized orange minute hand, and white-tipped sweep seconds hand.
Framed date window at 3 o'clock showing the numeral 9.
Applied rectangular hour markers, with a contrasting light green plot at 5 o'clock.
Vented black rubber Isofrane strap with rectangular perforations.

Research qualifications

The source notes the watch lacks a screw-down crown and may not have been used in actual underwater field tests.
The cataloguer notes the green plot at 5 o'clock is of uncertain origin, potentially a repair or prototype specification.
No movement or case back images are shown.

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

Omega The Hong Kong Watch Auction: SIX

Reviewed 2026-10-25 · Record 9eb41e1c7c

Terms in this record

Glossary explanations for terms named in this object’s record.