Vintage Unitrade NEC Stainless Steel Back Watch Case
Watch Case (Head Only) · Nickel-tone base metal with stainless steel; No precious gold content is visible or indicated.
Purity: Non-gold/Base Metal; The item is primarily stainless steel and base metal alloy as per the case back engraving.
Type
Watch Case (Head Only)
Purity
Non-gold/Base Metal; The item is primarily stainless steel and base metal alloy as per the case back engraving.
Gold Type
Nickel-tone base metal with stainless steel; No precious gold content is visible or indicated.
Weight
35-50 grams (estimated for the watch head assembly)
Description
A vintage watch case head featuring a circular stainless steel case back. The case back highlights mid-century technical achievements in horology, including dustproofing and magnetic resistance. The lugs show significant wear and oxidation typical of plated base metal pieces.
Key Features
Prominent 'NEC' and 'UNITRADE' branding with 'Design in U.S.A.' claim; typical 'tool watch' aesthetic of the mid-20th century.
Color & Finish
Silver-tone/Chrome with a circular brushed sunray finish on the case back and a heavily pitted, worn polished finish on the lugs.
Hallmarks & Stamps
Engraved 'STAINLESS STEEL BACK', 'COVER DUSTPROOF', 'ANTI-MAGNETIC', 'SHOCK RESISTANT', 'UNITRADE', 'DESIGN IN U.S.A.', and 'NEC'.
Dimensions Estimate
Approximately 34mm - 38mm diameter including crown guards; standard men's vintage size.
Gemstones & Inlays
None; purely utilitarian metal construction.
Clasp & Closure
Screw-down or snap-off stainless steel case back with visible brass-colored alignment pins or screws.
Chain & Links
N/A; strap/bracelet is missing from the 18mm-20mm lugs.
Craftsmanship Details
Machine-stamped case back with industrial-grade engraving; cast base metal body with chrome or nickel plating.
Authentication Indicators
Genuine vintage mass-market watch markings; the 'Stainless Steel Back' stamp is a diagnostic indicator that the rest of the case is NOT solid gold or steel but plated brass.
Origin & Maker
Unitrade/NEC; likely an American-designed brand with components manufactured in Japan or Switzerland.
Era & Period
Mid-Century Modern to 1970s; characterized by the 'Anti-Magnetic' and 'Shock Resistant' marketing common in that era.
Age Estimate
Circa 1960s-1975 based on the font style and technical specifications listed.
Cultural Significance
Represents the era of 'everyman' watches before the Quartz Crisis, emphasizing durability and technical reliability over luxury.
Condition Notes
Fair to Poor condition; the outer case shows extensive pitting, plating loss, and scratches. The stainless steel back is better preserved but shows circular scuffs.
Value Estimate
Collector value $5-$20 for parts/repair; negligible precious metal value as it contains no gold.
Care & Maintenance
Keep away from moisture as 'dustproof' does not mean waterproof; avoid polishing the lugs further as the plating is already compromised.
Similar Items
Vintage Timex, Westclox, or Elgin base metal watches from the same era.
Interesting Facts
During the mid-20th century, many companies branded 'Design in U.S.A.' to appeal to American consumers while using economical imported movements.