General Information

Serial #

N/A

Part Number

1

Total Parts

3

AKA

N/A

Patents

N/A

General Description

SUBSTRATE OF UNKNOWN SUBSTANCE (SYNTHETIC?) IN SYNTHETIC MOUNT/ METALLIC CIRCUITRY

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

N/A

Width

3.2 cm

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Horology

Category

Watches

Sub-Category

N/A

Manufacturer

AKA

Bowmar

Country

Canada

State/Province

Ontario

City

Ottawa

Context

Country

Canada

State/Province

Ontario

Period

1970'S

Canada

COMPONENT USED IN DEVELOPMENT OF CANADIAN MADE LED DIGITAL WATCH. BOWMAR WAS PIONEER IN LED CLOCKS, CALCULATORS ETC. & TURNED IN 1973 TO DESIGN & PRODUCTION OF LED WATCHES, PRODUCING THEM FOR 10-12 YEARS. DONOR WAS COMPANYCO-OWNER & PRESIDENT & DESIGNED CHIP CIRCUITRY, WHICH WAS THEN FABRICATED IN U.S.

Function

SUPPORTING MATERIAL UPON WHICH ELECTRONIC CIRCUITS OF DIGITAL WATCH ARE FABRICATED. MOUNTED ON EACH OF THESE EXAMPLES IS CMOS [COMPLEMENTARY METAL OXIDE SEMICONDUCTOR] INTEGRATED CIRCUIT.

Technical

EXAMPLE OF COMPONENT USED IN DEVELOPMENT OF EARLY LED DIGITAL WATCH. IN 1970 AMERICAN FIRM HAMILTON WATCH APPLIED QUARTZ CRYSTAL TIMING PRINCIPLE TO WATCHES, PRODUCING PULSAR WATCH, WHICH SOLD FOR $2500. SEVERAL YEARS LATER BOWMAR WATCH WAS SOLD FOR $250.

Area Notes

Unknown

Details

Markings

GOLD "B" ON TOP; BLACK "Bowmar" ON UNDERSIDE

Missing

APPEAR COMPLETE

Finish

GREEN & GOLD SUBSTRATE IN BLACK MOUNT

Decoration

N/A