Soviet Molnija Caliber 3602 18-Jewel Mechanical Pocket Watch Movement Component
Watch (Pocket Watch Movement) · Base metal movement bridges with brass gear wheels and steel components; not made of solid precious gold
Purity: Not applicable to base metal movement components, though external casings of associated watches were often gold-plated or filled
Type
Watch (Pocket Watch Movement)
Purity
Not applicable to base metal movement components, though external casings of associated watches were often gold-plated or filled
Gold Type
Base metal movement bridges with brass gear wheels and steel components; not made of solid precious gold
Weight
Estimated total movement weight around 15 to 25 grams, containing trace or no precious metal content
Description
An exposed view of a classic Soviet-era Molnija caliber 3602 mechanical pocket watch movement. Featuring 18 ruby jewel bearings, distinct Geneva stripes on the bridge, and clear Cyrillic or export-market Latin stampings including the 'SU' country-of-origin mark and individual serial number. This robust, reliable hand-wound movement was a staple of Soviet horology, heavily inspired by earlier Swiss designs.
Key Features
Caliber 3602 designation, 18 jewels, 'SU' Soviet Union export mark, linear brushing decoration on the main bridge, and visible ruby pivot bearings
Color & Finish
Silver-toned brushed nickel-plated bridges, polished steel screws, and brass-colored gear trains with synthetic ruby jewel bearings
Hallmarks & Stamps
Stamped with '18 jewels', the caliber designation '3602', the Soviet Union indicator stamp 'SU', and a serial number '841852'
Dimensions Estimate
Standard 36 mm movement diameter typical of Molnija pocket watch calibers
Gemstones & Inlays
18 synthetic ruby jewels used as bearing surfaces to reduce friction in the gear train and escapement
Clasp & Closure
Not applicable; mechanical movement housed inside a pocket watch case secured by a threaded or snap-on case back
Chain & Links
Not applicable; internal gear train featuring escape wheel, pallet fork, balance wheel, and mainspring barrel components
Craftsmanship Details
Industrial mechanical construction utilizing stamped and milled brass and steel plates, nickel plating for corrosion resistance, and functional Geneva striping finishing
Authentication Indicators
Authentic Soviet Molnija 3602 layout, standard factory serial numbering font, accurate placement of jewel countersunk settings, and standard 'SU' hallmark
Origin & Maker
Made in the Soviet Union (SU), produced by the Molnija (Lightning) Watch Factory in Chelyabinsk
Era & Period
Soviet Era (Mid to Late 20th Century)
Age Estimate
Circa 1960s-1980s based on the 3602 caliber design and Soviet export/domestic stamping conventions
Cultural Significance
Represents the industrial might and widespread watchmaking production of the Soviet Union, supplying durable timepieces across the Eastern Bloc and international export markets
Condition Notes
Very good vintage condition with clean bridges, intact rubies, clear stamps, and minimal visible oxidation on the steel screws and gear components
Value Estimate
Moderate collectible value ranging from $30 to $100 depending on working condition and whether it is housed in its original gold-plated or base metal pocket watch case
Care & Maintenance
Requires professional mechanical servicing, cleaning, and oiling every 5 years; keep away from moisture, magnetic fields, and heavy physical shocks
Similar Items
Other Soviet movements such as the Vostok 2809 or Chaika watch movements, and Swiss pocket watch calibers from Cortebert and Rolex
Interesting Facts
The Molnija 3602 movement is a direct descendant of the French Cortebert 620 movement, which was acquired by the Soviet Union in the mid-20th century to power military, railway, and civilian pocket watches