Sector 450 Chronograph (Ref. 2653945035)
Dive Chronograph · Sector No Limits (currently owned by Morellato Group; was a high-tier independent Italian brand)
Period: Modern Tool Watch / Sport (Late 1990s - Early 2000s)

Type
Dive Chronograph
Brand
Sector No Limits (currently owned by Morellato Group; was a high-tier independent Italian brand)
Movement
Quartz Chronograph, likely ETA G10 series or similar Swiss movement
Dimensions
40mm diameter, 13mm thick, 46mm lug-to-lug, 20mm lug width
Description
A robust, multi-functional sports watch designed for extreme conditions, representing Sector's 'No Limits' philosophy through bold architecture and high water resistance.
Key Features
Bold 'pinched' bezel design, 200m water resistance, and the signature 'No Limits' eagle logo on the dial
Dial Description
Matte black dial, applied Arabic numerals, three subdials (1/10th sec, 60-min, running seconds), sword hands, date at 4 o'clock
Case Material
Stainless steel with a mix of brushed and polished finishes
Crystal Type
Flat sapphire crystal, as noted on the dial text
Bezel Details
Unidirectional rotating dive bezel, brushed steel with embossed black-lacquered 60-minute scale
Crown & Pushers
Screw-down crown with integrated guards, two cylindrical pump-style chronograph pushers
Bracelet or Strap
Three-link stainless steel bracelet with polished center links and brushed side links; folding clasp
Caseback Details
Solid screw-down stainless steel caseback featuring the Sector 'No Limits' logo and technical specs
Movement Type
Quartz Chronograph, likely ETA G10 series or similar Swiss movement
Water Resistance
200 Meters (660 Feet); suitable for swimming and recreational scuba diving
Origin & Provenance
Swiss Made; though an Italian brand, this era utilized Swiss components and assembly
Age Estimate
Circa 2000-2005
Cultural Significance
Represents the peak of the Italian-led 'extreme sports watch' trend of the late 20th century
Condition Notes
Good overall condition; visible surface scratches on the bezel and lugs; crystal appears clear; bracelet shows minor desk-diving marks
Value Estimate
$100 - $250 USD depending on functional condition and bracelet integrity
Care & Maintenance
5-year battery replacement interval; gaskets should be pressure tested every 2 years to ensure the 200m depth rating remains intact
Similar Watches
TAG Heuer Formula 1 Chronograph, Tissot PRC 200, Sector 600 Series
Interesting Facts
The 450 series was marketed toward adventurers and was famously endorsed by free-divers and mountaineers in the 1990s