Original Slava Tank “Monster” Automatic Watch 1980s USSR, Cal. 2427 27 Jewels
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Slava Tank (Monster) Model 7621807 Automatic Watch - 1980s Soviet Timepiece
A remarkable piece from the 2nd Moscow Watch Factory, this Slava watch from the 1980s combines Soviet-era craftsmanship with durable design. Featuring the automatic Caliber 2427 movement, it offers 27 jewels, operates at 18,000 bph, and provides a 40-hour power reserve. Notable for its cushion-shaped chrome-plated case and black dial with pronounced white Arabic numerals. Recently serviced for optimal performance.
Specifications
- Brand: Slava
- Model: 7621807
- Factory / Manufacturer: 2nd Moscow Watch Factory (2МЧЗ / Slava)
- Country of Origin: USSR
- Decade / Era: 1980s
Movement
- Caliber: 2427
- Movement Type: Mechanical, automatic (self-winding)
- Jewels: 27
- Frequency: 18,000 bph
- Power Reserve: ~40 hours
- Lift Angle: 49°
- Shock Protection: Shock-resistant
- Functions: Hours, minutes, central seconds, day and date
- Quick Date Adjustment: Side pusher at 2 o'clock
- Time Setting: Crown at 3 o'clock
Case
- Case Shape: Cushion-shaped case
- Case Material: Chrome-plated brass
- Case Size (W×H mm): 37 x 44.5
- Thickness (mm): 13
- Crystal: Flat acrylic crystal, slightly raised above the case
- Case Back: Stainless steel caseback held by a threaded ring
- Serial Number: 118824
Dial & Hands
- Dial Color: Black
- Hour Markers: White Arabic numerals with omitted 3 and 9 positions
- Hour & Minute Hands: Flat nickel-plated hands with white inlays
- Seconds Hand: Seconds hand with white tip
- Date / Day Window: Day and date double aperture at 3 o'clock
Bracelet / Strap
- Bracelet / Strap: Integrated adjustable Slava stainless steel bracelet with double folding clasp
Service
- Service Date: April 2026
- Service Notes: Complete disassembly, cleaning, ultrasonic cleaning, lubrication, precision adjustment.
In very good condition with minor wear, this watch maintains its vintage charm. Authenticity is ensured through complete servicing and original components. Its Soviet origin and robust design add to its collectibility and historical interest. Often referred to as the Slava Tank or the Slava Monster.
Overview
- Period
- 1980s
- Factory
- Second Moscow Watch Factory
Movement
- Movement
- Automatic
- Caliber
- 2427
- Jewels
- 27 jewels
Case size
- Weight
- 200 g
Case
- Case material
- Chrome-plated
- Case finish
- Chrome-plated
Dial, hands & crystal
- Dial color
- Black
Condition & service
Condition: Fully serviced
Carefully packed and sent with tracking — typically 7–21 business days depending on destination.
Every watch is a genuine Soviet-era original, inspected and (where noted) serviced before it ships.
If it isn't right, return it within 14 days for a refund — just get in touch and we'll sort it out.
A Soviet mechanical watch has no battery — it runs on a tiny wound spring, just as it did decades ago. Treat it kindly and it will keep good time for many years. Here is how to wind, set and care for yours.
Winding a hand-wound watch
- Wind it off your wrist. Hold the watch in one hand so you do not put sideways stress on the winding stem.
- Turn the crown clockwise (away from you) with your thumb and forefinger, in smooth, steady turns.
- Stop as soon as you feel firm resistance. Do not force that last turn — a fully wound spring stops abruptly, and pushing past it can damage the mainspring.
- A full wind lasts roughly 24–40 hours. Winding once a day, at about the same time, keeps the watch running and accurate.
Automatic (self-winding) models
Some Soviet watches — certain Vostok and Slava models — wind themselves from the motion of your wrist. If one has stopped, give the crown 20–30 gentle turns to get it started, then simply wear it. You cannot over-wind a healthy automatic.
Setting the time & date
- Gently pull the crown out to the setting position and turn it to move the hands. Setting the time forwards (clockwise) is kindest to the movement.
- If your watch has a date, avoid changing it between roughly 9 p.m. and 3 a.m. The date mechanism is engaged during those hours and forcing it can break it — move the hands to mid-morning first, then set the date.
- Push the crown fully back in when you are finished.
Everyday care
- Keep it dry. Vintage watches are not water resistant, even if marked so decades ago. Take it off before washing your hands, swimming or showering.
- Avoid magnets — speakers, phones, laptops and magnetic clasps can magnetise the movement and make it run fast.
- Avoid knocks. Take the watch off for sport or heavy work.
- A vintage movement that keeps time to within about a minute or two a day is running well. Small variation is normal and part of their charm.
Storage & service
When you are not wearing it, store the watch flat in its box, away from heat and moisture. There is no need to keep it fully wound at all times. To keep it healthy, have it professionally serviced every 3–5 years — a clean and fresh lubrication is what lets these watches run, quite literally, for generations.
Look after it and your Soviet Time piece will outlast its battery-powered cousins many times over. If anything ever feels wrong, write to support@soviet-time.com. You can also review our Returns & guarantee. — Igor, your watchmaker
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