PRODUCT DESCRIPTION & FEATURES
This Sturmanskie Open Space Chronograph NE86/1855015 is a men’s automatic chronograph wristwatch from the “Open Space” collection, inspired by Soviet cosmonaut Alexei Leonov and the first human spacewalk. The model features a stainless steel case, sapphire crystal, and a full mechanical chronograph layout with subdials and tachymeter scale.
Series: Open Space Chronograph
Model: NE86/1855015
Limited Edition: 500 pcs (special limited run, engraved series)
MOVEMENT
Movement: Seiko NE86 automatic chronograph
Shock Resistance: Yes
Frequency: 28,800 vibrations per hour
Power Reserve: ~45 hours
Calendar: Date display
Winding: Automatic self-winding + manual winding
Chronograph: Yes (30-min / central seconds / subdial timing system)
CASE & BUILD
Case Material: Stainless steel
Case Shape: Round
Case Size: 44 mm
Case Thickness: ~14.8 mm
Case Back: Transparent exhibition caseback (screw-in)
Weight: ~108 g
Band Type: Strap
Band Material: Genuine leather
Lug Width: 22 mm
CRYSTAL & DIAL
Crystal: Sapphire glass with anti-reflective coating
Dial Type: Chronograph dial (multi-subdial layout)
Luminescence: Super-LumiNova on hands and indices
BEZEL & FUNCTIONS
Functions: Hours, minutes, seconds, chronograph (stopwatch), date
Bezel: Fixed
PROTECTION & RESISTANCE
Water Resistance: 50 m / 5 ATM
USAGE & CARE
Mechanical automatic chronograph designed for daily wear and collector use. Chronograph pushers should not be operated underwater. Avoid strong magnetic fields and shocks. Regular servicing is recommended due to NE86 movement complexity.








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